{"id":1472,"date":"2026-11-08T00:06:35","date_gmt":"2026-11-08T00:06:35","guid":{"rendered":"https:\/\/www.r3tr0.net\/index.php\/wondermca-documentation\/wmdoc_bluetooth\/"},"modified":"2026-11-12T12:55:18","modified_gmt":"2026-11-12T12:55:18","slug":"wmdoc_bluetooth","status":"publish","type":"page","link":"https:\/\/www.r3tr0.net\/index.php\/wondermca-documentation\/wmdoc_bluetooth\/","title":{"rendered":"WonderMCA: Bluetooth"},"content":{"rendered":"\n<div class=\"wp-block-group wmdoc-hero has-text-color has-background has-link-color wp-elements-1 is-layout-constrained wp-container-core-group-is-layout-89221c49 wp-block-group-is-layout-constrained\" style=\"border-radius:10px;color:#edf5ff;background-color:#001141;margin-bottom:32px;padding-top:28px;padding-right:32px;padding-bottom:28px;padding-left:32px\">\n<p class=\"has-text-color wp-block-paragraph\" style=\"color:#78a9ff;margin-bottom:8px;font-size:13px;font-weight:600;letter-spacing:2px;text-transform:uppercase\">WonderMCA \u00b7 User documentation<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"margin-top:0;font-size:19px;line-height:1.55\">Bluetooth keyboards, mice, game pads and headphones on the PS\/2, Classic and Bluetooth Low Energy: what you need, switching Bluetooth on, pairing from the setup menu or the screenpad, the codes a keyboard asks for, reconnecting, forgetting a device, the files on the microSD card, the limits and the problems.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"margin-top:12px;font-size:14px\"><a href=\"https:\/\/www.r3tr0.net\/index.php\/wondermca-documentation\/\">\u2190 WonderMCA documentation home<\/a> \u00b7 Page 19<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-group wmdoc-toc has-border-color has-background is-layout-constrained wp-container-core-group-is-layout-67fe145d wp-block-group-is-layout-constrained\" style=\"border-color:#dcdcde;border-width:1px;border-radius:8px;background-color:#f6f7f7;margin-bottom:32px;padding-top:16px;padding-right:24px;padding-bottom:16px;padding-left:24px\">\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>On this page \u2014 13 sections<\/summary>\n<ul class=\"wp-block-list\">\n<li><a href=\"#what-you-need\">What you need<\/a><\/li>\n\n\n\n<li><a href=\"#what-is-supported\">What is supported<\/a><\/li>\n\n\n\n<li><a href=\"#switching-bluetooth-on\">Switching Bluetooth on<\/a><\/li>\n\n\n\n<li><a href=\"#pairing-from-the-setup-menu\">Pairing from the setup menu<\/a><\/li>\n\n\n\n<li><a href=\"#pairing-from-the-screenpad\">Pairing from the screenpad<\/a><\/li>\n\n\n\n<li><a href=\"#using-the-devices\">Using the devices<\/a><\/li>\n\n\n\n<li><a href=\"#bluetooth-headphones\">Bluetooth headphones<\/a><\/li>\n\n\n\n<li><a href=\"#after-a-restart-or-a-power-cycle\">After a restart or a power cycle<\/a><\/li>\n\n\n\n<li><a href=\"#forgetting-a-device\">Forgetting a device<\/a><\/li>\n\n\n\n<li><a href=\"#the-setup-page-in-detail\">The setup page in detail<\/a><\/li>\n\n\n\n<li><a href=\"#the-files-on-the-microsd-card\">The files on the microSD card<\/a><\/li>\n\n\n\n<li><a href=\"#limits\">Limits<\/a><\/li>\n\n\n\n<li><a href=\"#problems\">Problems<\/a><\/li>\n<\/ul>\n<\/details>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">The card can be a Bluetooth host. It pairs Bluetooth keyboards, mice and game pads, both Classic Bluetooth and Bluetooth Low Energy (BLE), through the radio of its WiFi module. The PS\/2 then sees them as it sees the USB devices (<a href=\"https:\/\/www.r3tr0.net\/index.php\/wondermca-documentation\/wmdoc_usb\/\">USB devices<\/a>):<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table><thead><tr><th>Device<\/th><th>What the PS\/2 sees<\/th><\/tr><\/thead><tbody><tr><td>Keyboard<\/td><td>Its own keyboard: the card sends the keys to the keyboard controller of the PS\/2<\/td><\/tr><tr><td>Mouse<\/td><td>A serial mouse at COM2 (2F8h, interrupt 3), Microsoft protocol<\/td><\/tr><tr><td>Game pad<\/td><td>A PC joystick on the game port at 201h<\/td><\/tr><tr><td>Headphones, speaker<\/td><td>Nothing: the card plays its own sound in them instead of the jack (<a href=\"#bluetooth-headphones\">below<\/a>)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">You pair a device once, from the setup menu or from the screenpad. The card keeps the pairing on the microSD card, and the device comes back by itself after a restart of the PS\/2 or a power cycle.<\/p>\n\n\n\n<div class=\"wp-block-group wmdoc-callout wmdoc-note has-background is-layout-constrained wp-container-core-group-is-layout-1828d0e2 wp-block-group-is-layout-constrained\" style=\"border-radius:6px;border-left-color:#f0b429;border-left-style:solid;border-left-width:4px;background-color:#fff8e1;margin-top:24px;margin-bottom:24px;padding-top:12px;padding-right:20px;padding-bottom:12px;padding-left:20px\">\n<p class=\"wp-block-paragraph\"><strong>Note.<\/strong> Bluetooth is new. Switch Pro-style pads work on the card; other devices are less tried. Report what works and what does not (<a href=\"https:\/\/www.r3tr0.net\/index.php\/wondermca-documentation\/wmdoc_troubleshooting\/#collecting-a-log-to-send\">troubleshooting<\/a>).<\/p>\n<\/div>\n\n\n\n<h2 id=\"what-you-need\" class=\"wp-block-heading\">What you need<\/h2>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table><thead><tr><th>You need<\/th><th>Why<\/th><\/tr><\/thead><tbody><tr><td><strong>The 16-bit firmware<\/strong><\/td><td>The 16-bit build on the <a href=\"https:\/\/www.r3tr0.net\/index.php\/wondermca-firmware\/\">firmware page<\/a> (0900_002 and later) has Bluetooth; the 8-bit build has none. With Bluetooth, the setup menu has an eighth title, <strong>Bluetooth<\/strong>, after <strong>USB<\/strong>, and the screenpad has a <strong>Bluetooth<\/strong> row under <strong>Others<\/strong>. Without it, neither is there and the <code class=\"\" data-line=\"\">BT<\/code> line of <code class=\"\" data-line=\"\">config.txt<\/code> is ignored. See <a href=\"https:\/\/www.r3tr0.net\/index.php\/wondermca-documentation\/wmdoc_firmware-cpld-update\/\">firmware and CPLD update<\/a><\/td><\/tr><tr><td><strong>Option ROM 08F9 or later<\/strong><\/td><td>It comes with the firmware. With 08F9, <strong>Esc<\/strong> cancels a pairing; with an older option ROM, <strong>Esc<\/strong> leaves the setup menu and only <strong>C<\/strong> cancels<\/td><\/tr><tr><td><strong>Network type WiFi or Radio only<\/strong><\/td><td>Bluetooth uses the radio of the WiFi module. With <strong>None<\/strong>, <strong>Ethernet<\/strong> or <strong>USB Eth<\/strong> the radio stays off. <strong>Radio only<\/strong> switches the radio on for Bluetooth and starts no network (<a href=\"#the-network-type-radio-only\">below<\/a>)<\/td><\/tr><tr><td><strong>Bluetooth On<\/strong><\/td><td>In the setup menu, on the screenpad or with <code class=\"\" data-line=\"\">BT 1<\/code> in <code class=\"\" data-line=\"\">config.txt<\/code>, then a power cycle (<a href=\"#switching-bluetooth-on\">below<\/a>)<\/td><\/tr><tr><td><strong>The USB page set as for a USB device<\/strong><\/td><td>A Bluetooth device uses the same path as the USB device of the same kind: <strong>USB Keyboard<\/strong> On for a keyboard; <strong>USB Mouse<\/strong> On and <strong>USB Mouse (COM2)<\/strong> Enabled on the Reference Diskette for a mouse; <strong>USB Host<\/strong> and <strong>USB Joystick<\/strong> On and <strong>Joystick Enable<\/strong> on the Reference Diskette for a game pad (<a href=\"https:\/\/www.r3tr0.net\/index.php\/wondermca-documentation\/wmdoc_usb\/\">USB devices<\/a>)<\/td><\/tr><tr><td><strong>The microSD card<\/strong><\/td><td>The pairings are kept in files on it (<a href=\"#the-files-on-the-microsd-card\">below<\/a>). Without a card, a pairing is lost at the next power-on<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">The CPLD does not change for Bluetooth.<\/p>\n\n\n\n<h2 id=\"what-is-supported\" class=\"wp-block-heading\">What is supported<\/h2>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table><thead><tr><th>Kind<\/th><th>Link<\/th><th>How it pairs<\/th><th>Shown as<\/th><\/tr><\/thead><tbody><tr><td>Keyboards<\/td><td>Classic and BLE<\/td><td>Most ask you to type a six-digit code on the keyboard. An older keyboard asks for a four-digit PIN. Some BLE keyboards show a number and ask you to confirm it<\/td><td><strong>KBD<\/strong><\/td><\/tr><tr><td>Mice<\/td><td>Classic and BLE<\/td><td>No code<\/td><td><strong>MOUSE<\/strong><\/td><\/tr><tr><td>Game pads<\/td><td>Classic and BLE<\/td><td>No code<\/td><td>see the table below<\/td><\/tr><tr><td>Headphones, speakers<\/td><td>Classic<\/td><td>No code, or a number to confirm<\/td><td><strong>AUDIO<\/strong><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Whatever the device, when the screen asks for a code or a number, answer as <a href=\"#when-a-keyboard-asks-for-a-code\">for a keyboard<\/a>. The game pads the card knows by name, and how to put each one in pairing mode:<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table><thead><tr><th>Pad<\/th><th>Shown as<\/th><th>Pairing mode<\/th><\/tr><\/thead><tbody><tr><td>Sony DualShock 4<\/td><td><strong>DS4<\/strong><\/td><td>Hold <strong>Share<\/strong> and <strong>PS<\/strong> until the light bar flashes quickly<\/td><\/tr><tr><td>Sony DualSense<\/td><td><strong>DS5<\/strong><\/td><td>Hold <strong>Create<\/strong> and <strong>PS<\/strong> until the light flashes quickly<\/td><\/tr><tr><td>Nintendo Switch Pro Controller<\/td><td><strong>SWPRO<\/strong><\/td><td>Hold the small sync button on the top until the lights run<\/td><\/tr><tr><td>8BitDo pads<\/td><td><strong>8BIT<\/strong><\/td><td>The pairing combination of the pad&#8217;s mode: see its manual<\/td><\/tr><tr><td>Xbox Wireless Controller<\/td><td><strong>XBOX<\/strong><\/td><td>Hold the pair button on the top until the Xbox button flashes quickly<\/td><\/tr><tr><td>Other Bluetooth game pads<\/td><td><strong>PAD<\/strong><\/td><td>See the manual of the pad<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">The setup menu writes the kind in upper case (<strong>DS4<\/strong>, <strong>SWPRO<\/strong>, <strong>KBD<\/strong>, <strong>AUDIO<\/strong>). The screenpad writes the short form (<strong>DS4<\/strong>, <strong>SwPro<\/strong>, <strong>8Bit<\/strong>, <strong>Xbox<\/strong>, <strong>pad<\/strong>, <strong>kbd<\/strong>, <strong>mouse<\/strong>, <strong>audio<\/strong>). A BLE device has the mark <strong>LE<\/strong> next to it.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">At most <strong>four devices are connected at once<\/strong>, among them <strong>two game pads<\/strong> (the two players of the game port; a USB pad counts as one of them) and <strong>one pair of headphones<\/strong>. The card remembers <strong>eight paired devices<\/strong>. See <a href=\"#limits\">the limits<\/a>.<\/p>\n\n\n\n<h2 id=\"switching-bluetooth-on\" class=\"wp-block-heading\">Switching Bluetooth on<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Bluetooth is <strong>Off<\/strong> until you switch it on. The switch takes effect at the <strong>next power-on<\/strong>: switch the PS\/2 off and on. A restart with Ctrl-Alt-Del does not power-cycle the card.<\/p>\n\n\n\n<h3 id=\"from-the-setup-menu\" class=\"wp-block-heading\">From the setup menu<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Press <strong>S<\/strong> at the banner. The top line has the title <strong>Bluetooth<\/strong> after <strong>USB<\/strong>: <strong>Main Disk Audio Network USB Bluetooth POS Register Tools<\/strong>.<\/li>\n\n\n\n<li>Press <strong>Right<\/strong> five times from <strong>Main<\/strong> (or <strong>Left<\/strong> three times) to open the <strong>Bluetooth<\/strong> page. With Bluetooth off, it shows <strong>Bluetooth is disabled.<\/strong> and one row, with the cursor on it:<\/li>\n<\/ol>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized has-custom-border\"><img loading=\"lazy\" decoding=\"async\" width=\"720\" height=\"400\" src=\"https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_off.png\" alt=\"The Bluetooth page with Bluetooth off: Bluetooth is disabled, Bluetooth : Off (Enter: switch On at the next power-on)\" class=\"wp-image-1455\" style=\"border-radius:6px;width:560px;height:auto\" srcset=\"https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_off.png 720w, https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_off-300x167.png 300w, https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_off-600x333.png 600w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\" \/><figcaption class=\"wp-element-caption\">The Bluetooth page with Bluetooth off: &#8216;Bluetooth is disabled.&#8217;, &#8216;&gt; Bluetooth : Off (Enter: switch On at the next power-on)&#8217;<\/figcaption><\/figure>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li>Press <strong>Enter<\/strong>. The row reads <strong>Off, On at the next power-on (Enter: undo)<\/strong>, and the bottom line <strong>Bluetooth will be On. It applies at the next power-on.<\/strong><\/li>\n<\/ol>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized has-custom-border\"><img loading=\"lazy\" decoding=\"async\" width=\"720\" height=\"400\" src=\"https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_off_to_on.png\" alt=\"After Enter: Bluetooth : Off, On at the next power-on (Enter: undo)\" class=\"wp-image-1456\" style=\"border-radius:6px;width:560px;height:auto\" srcset=\"https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_off_to_on.png 720w, https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_off_to_on-300x167.png 300w, https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_off_to_on-600x333.png 600w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\" \/><figcaption class=\"wp-element-caption\">After Enter: &#8216;Bluetooth : Off, On at the next power-on (Enter: undo)&#8217;, &#8216;Bluetooth starts at the next power-on: power-cycle the computer.&#8217;<\/figcaption><\/figure>\n\n\n\n<ol start=\"4\" class=\"wp-block-list\">\n<li>Press <strong>Esc<\/strong> to leave the setup menu, then switch the PS\/2 off and on.<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">The same row switches Bluetooth off: <strong>Bluetooth : On (Enter: switch Off at the next power-on)<\/strong>.<\/p>\n\n\n\n<h3 id=\"from-the-screenpad\" class=\"wp-block-heading\">From the screenpad<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Others &gt; Bluetooth<\/strong>, row <strong>Bluetooth<\/strong>: <strong>ENTER<\/strong> asks for the other value at the next power-on. The row <strong>At next power-on<\/strong> under it shows what the next power-on does (<a href=\"https:\/\/www.r3tr0.net\/index.php\/wondermca-documentation\/wmdoc_screenpad\/\">screenpad reference<\/a>).<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized has-custom-border\"><img loading=\"lazy\" decoding=\"async\" width=\"512\" height=\"256\" src=\"https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_screenpad_bt_onoff_pending_on.png\" alt=\"The screenpad Bluetooth page with Bluetooth off: Bluetooth disabled, the row Bluetooth Off under the bar, At next power-on On\" class=\"wp-image-1465\" style=\"border-radius:6px;width:256px;height:auto\" srcset=\"https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_screenpad_bt_onoff_pending_on.png 512w, https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_screenpad_bt_onoff_pending_on-300x150.png 300w\" sizes=\"auto, (max-width: 512px) 100vw, 512px\" \/><figcaption class=\"wp-element-caption\">The screenpad with Bluetooth off: the row Bluetooth Off under the bar, At next power-on On<\/figcaption><\/figure>\n\n\n\n<h3 id=\"with-config-txt\" class=\"wp-block-heading\">With config.txt<\/h3>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table><thead><tr><th>Line<\/th><th>Effect<\/th><\/tr><\/thead><tbody><tr><td><code class=\"\" data-line=\"\">BT 1<\/code><\/td><td>Bluetooth on<\/td><\/tr><tr><td><code class=\"\" data-line=\"\">BT 0<\/code><\/td><td>Bluetooth off<\/td><\/tr><tr><td>no <code class=\"\" data-line=\"\">BT<\/code> line<\/td><td>The switch of the setup menu and the screenpad decides. Without a choice, Bluetooth is off<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">A <code class=\"\" data-line=\"\">BT<\/code> line <strong>wins<\/strong> over the switch of the setup menu and of the screenpad. Their row then cannot be changed: the setup menu shows <strong>(BT 1 in config.txt wins over this switch)<\/strong>, the screenpad <strong>Set by config.txt<\/strong>. To use the switch again, remove the line from <code class=\"\" data-line=\"\">config.txt<\/code>.<\/p>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-2 wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\" style=\"margin-top:24px;margin-bottom:24px\">\n<figure class=\"wp-block-image size-full has-custom-border\"><img loading=\"lazy\" decoding=\"async\" width=\"720\" height=\"400\" data-id=\"1450\" src=\"https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_forced_on.png\" alt=\"The Bluetooth page with BT 1 in config.txt\" class=\"wp-image-1450\" style=\"border-radius:6px\" srcset=\"https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_forced_on.png 720w, https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_forced_on-300x167.png 300w, https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_forced_on-600x333.png 600w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\" \/><figcaption class=\"wp-element-caption\">BT 1 in config.txt: &#8216;Bluetooth : On (BT 1 in config.txt wins over this switch)&#8217;<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full has-custom-border\"><img loading=\"lazy\" decoding=\"async\" width=\"720\" height=\"400\" data-id=\"1449\" src=\"https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_forced_off.png\" alt=\"The Bluetooth page with BT 0 in config.txt\" class=\"wp-image-1449\" style=\"border-radius:6px\" srcset=\"https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_forced_off.png 720w, https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_forced_off-300x167.png 300w, https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_forced_off-600x333.png 600w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\" \/><figcaption class=\"wp-element-caption\">BT 0 in config.txt: change it to BT 1 or remove it, then power-cycle the computer<\/figcaption><\/figure>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">The card writes the choice of the switch in the file <code class=\"\" data-line=\"\">BTSET.TXT<\/code> on the microSD card (<a href=\"#the-files-on-the-microsd-card\">below<\/a>).<\/p>\n\n\n\n<h3 id=\"the-network-type-radio-only\" class=\"wp-block-heading\">The network type Radio only<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A firmware with Bluetooth offers a fifth network type, <strong>Radio only<\/strong>: the radio is on for Bluetooth, but the card does not join a WiFi network, gives the PS\/2 no network card (no NE2000) and has no web page. Choose it when you want Bluetooth and no network, or when you have no <code class=\"\" data-line=\"\">wifi.txt<\/code>.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Setup menu: <strong>Network<\/strong> page, <strong>Network:<\/strong> row, <strong>Radio only<\/strong>. The <strong>Status<\/strong> reads <strong>Radio on, no network<\/strong>.<\/li>\n\n\n\n<li>Screenpad: <strong>Network<\/strong> page, <strong>Type<\/strong>: <strong>ENTER<\/strong> goes None, Ethernet, WiFi, Radio only.<\/li>\n\n\n\n<li>The boot banner shows <strong>Network: Radio only<\/strong>.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized has-custom-border\"><img loading=\"lazy\" decoding=\"async\" width=\"720\" height=\"400\" src=\"https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_network_radio_only.png\" alt=\"The Network page with Network: Radio only and Status: Radio on, no network\" class=\"wp-image-1463\" style=\"border-radius:6px;width:560px;height:auto\" srcset=\"https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_network_radio_only.png 720w, https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_network_radio_only-300x167.png 300w, https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_network_radio_only-600x333.png 600w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\" \/><figcaption class=\"wp-element-caption\">The Network page with &#8216;Network: [Radio only]&#8217; and &#8216;Status: Radio on, no network&#8217;<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Like every network type, it takes effect at the next power-on. See <a href=\"https:\/\/www.r3tr0.net\/index.php\/wondermca-documentation\/wmdoc_network\/\">Network<\/a>.<\/p>\n\n\n\n<h2 id=\"pairing-from-the-setup-menu\" class=\"wp-block-heading\">Pairing from the setup menu<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Once Bluetooth runs, the <strong>Bluetooth<\/strong> page shows the status, the address of the card, the <strong>Bluetooth<\/strong> On\/Off row, two actions, the list of the devices found and the list of the paired devices. The bottom line lists the keys: Up\/Down select, Enter act, S scan, C cancel, Del forget, PgUp\/PgDn page.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized has-custom-border\"><img loading=\"lazy\" decoding=\"async\" width=\"720\" height=\"400\" src=\"https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_ready.png\" alt=\"The Bluetooth page, ready: Status Ready, the address, Bluetooth On, Scan for devices, Forget all paired devices, the two lists and the keys\" class=\"wp-image-1461\" style=\"border-radius:6px;width:560px;height:auto\" srcset=\"https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_ready.png 720w, https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_ready-300x167.png 300w, https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_ready-600x333.png 600w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\" \/><figcaption class=\"wp-element-caption\">The Bluetooth page, ready: &#8216;Status : Ready&#8217;, the address, &#8216;Bluetooth : On&#8217;, &#8216;Scan for devices (10 s)&#8217;, &#8216;Forget all paired devices&#8217;, &#8216;Discovered devices (0)&#8217;, &#8216;Paired devices (0)&#8217; and the keys<\/figcaption><\/figure>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Put the device in pairing mode (<a href=\"#what-is-supported\">What is supported<\/a>).<\/li>\n\n\n\n<li>On <strong>Scan for devices (10 s)<\/strong>, press <strong>Enter<\/strong>, or press <strong>S<\/strong> anywhere on the page. The status reads <strong>Scanning (10 s)&#8230;<\/strong> and the devices appear under <strong>Discovered devices<\/strong> with their name, their kind and their signal in dBm. The row reads <strong>Stop the scan (S or C)<\/strong> while the scan runs.<\/li>\n<\/ol>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized has-custom-border\"><img loading=\"lazy\" decoding=\"async\" width=\"720\" height=\"400\" src=\"https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_scanning.png\" alt=\"A scan runs: a DualShock 4 at -52 dBm and a BLE mouse marked LE, Stop the scan (S or C)\" class=\"wp-image-1462\" style=\"border-radius:6px;width:560px;height:auto\" srcset=\"https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_scanning.png 720w, https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_scanning-300x167.png 300w, https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_scanning-600x333.png 600w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\" \/><figcaption class=\"wp-element-caption\">A scan runs: &#8216;Status : Scanning (10 s)&#8230;&#8217;, a DualShock 4 at -52 dBm and a BLE mouse marked LE, &#8216;Stop the scan (S or C)&#8217;<\/figcaption><\/figure>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li>When the scan ends, the status is <strong>Ready<\/strong> again. A name may show <strong>(reading the name&#8230;)<\/strong> for a moment, or <strong>(no name)<\/strong>.<\/li>\n<\/ol>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized has-custom-border\"><img loading=\"lazy\" decoding=\"async\" width=\"720\" height=\"400\" src=\"https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_found.png\" alt=\"The scan ended: Discovered devices (2), DualShock 4 Wireless DS4 -52 dBm, Office Keyboard KBD -71 dBm\" class=\"wp-image-1452\" style=\"border-radius:6px;width:560px;height:auto\" srcset=\"https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_found.png 720w, https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_found-300x167.png 300w, https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_found-600x333.png 600w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\" \/><figcaption class=\"wp-element-caption\">The scan ended: &#8216;Discovered devices (2)&#8217;, DualShock 4 Wireless DS4 -52 dBm, Office Keyboard KBD -71 dBm<\/figcaption><\/figure>\n\n\n\n<ol start=\"4\" class=\"wp-block-list\">\n<li>Move to the device with <strong>Down<\/strong> and press <strong>Enter<\/strong>. The status reads <strong>Pairing&#8230;<\/strong> and the bottom line <strong>Pairing DualShock 4 Wireless&#8230; Esc or C cancels.<\/strong><\/li>\n<\/ol>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized has-custom-border\"><img loading=\"lazy\" decoding=\"async\" width=\"720\" height=\"400\" src=\"https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_pairing.png\" alt=\"Pairing in progress: Status Pairing, the cursor on the DualShock 4\" class=\"wp-image-1457\" style=\"border-radius:6px;width:560px;height:auto\" srcset=\"https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_pairing.png 720w, https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_pairing-300x167.png 300w, https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_pairing-600x333.png 600w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\" \/><figcaption class=\"wp-element-caption\">Pairing in progress: &#8216;Status : Pairing&#8230;&#8217;, the cursor on the DualShock 4, &#8216;Pairing DualShock 4 Wireless&#8230; Esc or C cancels.&#8217;<\/figcaption><\/figure>\n\n\n\n<ol start=\"5\" class=\"wp-block-list\">\n<li>A pad or a mouse pairs with no code. A keyboard asks for a code: see the next section.<\/li>\n\n\n\n<li>When the pairing worked, the device moves to <strong>Paired devices<\/strong> with <strong>connected<\/strong>, the status reads <strong>Ready &#8211; 1 connected<\/strong>, and the bottom line <strong>Paired DualShock 4 Wireless.<\/strong><\/li>\n<\/ol>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized has-custom-border\"><img loading=\"lazy\" decoding=\"async\" width=\"720\" height=\"400\" src=\"https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_connected.png\" alt=\"Paired: Status Ready - 1 connected, Paired devices (1), DualShock 4 Wireless PAD connected\" class=\"wp-image-1445\" style=\"border-radius:6px;width:560px;height:auto\" srcset=\"https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_connected.png 720w, https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_connected-300x167.png 300w, https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_connected-600x333.png 600w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\" \/><figcaption class=\"wp-element-caption\">Paired: &#8216;Status : Ready &#8211; 1 connected&#8217;, &#8216;Paired devices (1)&#8217;, DualShock 4 Wireless PAD connected<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Some pads, Switch-style controllers in particular, pair but then only accept a connection they start themselves. The bottom line then reads <strong>Paired. Press the Home button on the device to connect it.<\/strong> (screenpad: <strong>Paired: press Home<\/strong>) and the pad is already in <strong>Paired devices<\/strong>. Press its <strong>Home<\/strong> button: it connects within a few seconds and shows <strong>connected<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Leave the setup menu with <strong>Esc<\/strong>. The device works from then on (<a href=\"#using-the-devices\">Using the devices<\/a>).<\/p>\n\n\n\n<h3 id=\"when-a-keyboard-asks-for-a-code\" class=\"wp-block-heading\">When a keyboard asks for a code<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The code shows on the row under <strong>Bluetooth<\/strong>, and the status counts the seconds left. You have 60 seconds.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>A six-digit code.<\/strong> Type the six digits <strong>on the Bluetooth keyboard<\/strong>, then press its <strong>Enter<\/strong> key. The stars in the brackets show how many digits the keyboard has reported. <strong>Enter<\/strong> on the PC keyboard does not answer the code: the page then says <strong>Type the code on the Bluetooth keyboard itself, then press its Enter key.<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized has-custom-border\"><img loading=\"lazy\" decoding=\"async\" width=\"720\" height=\"400\" src=\"https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_passkey.png\" alt=\"A keyboard asks for a code: 004271, 52 s left, three digits typed\" class=\"wp-image-1458\" style=\"border-radius:6px;width:560px;height:auto\" srcset=\"https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_passkey.png 720w, https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_passkey-300x167.png 300w, https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_passkey-600x333.png 600w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\" \/><figcaption class=\"wp-element-caption\">A keyboard asks for a code: &#8216;Type this code on the keyboard, then press Enter: 004271 [***&#8230;]&#8217;, 52 s left<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>A four-digit PIN<\/strong> (older keyboards). Type the PIN on the Bluetooth keyboard, then its <strong>Enter<\/strong> key.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized has-custom-border\"><img loading=\"lazy\" decoding=\"async\" width=\"720\" height=\"400\" src=\"https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_pin.png\" alt=\"A keyboard asks for a PIN: 4821\" class=\"wp-image-1459\" style=\"border-radius:6px;width:560px;height:auto\" srcset=\"https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_pin.png 720w, https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_pin-300x167.png 300w, https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_pin-600x333.png 600w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\" \/><figcaption class=\"wp-element-caption\">A keyboard asks for a PIN: &#8216;Type this PIN on the keyboard, then press Enter: 4821&#8217;<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>A number to compare<\/strong> (some BLE keyboards). The keyboard shows a number. When it is the same as the one on the screen, press <strong>Enter<\/strong> or <strong>Y<\/strong>. When it is not, press <strong>N<\/strong>, <strong>C<\/strong> or <strong>Esc<\/strong>.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized has-custom-border\"><img loading=\"lazy\" decoding=\"async\" width=\"720\" height=\"400\" src=\"https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_compare.png\" alt=\"A number to compare: 654321, Enter or Y same number, N, C or Esc cancel\" class=\"wp-image-1444\" style=\"border-radius:6px;width:560px;height:auto\" srcset=\"https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_compare.png 720w, https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_compare-300x167.png 300w, https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_compare-600x333.png 600w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\" \/><figcaption class=\"wp-element-caption\">A number to compare: &#8216;Does the device show this number? Confirm, or cancel if not: 654321&#8217;<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Once the keyboard has sent its <strong>Enter<\/strong>, the page shows <strong>Checking the code&#8230;<\/strong> until the result.<\/p>\n\n\n\n<h3 id=\"cancelling-a-pairing\" class=\"wp-block-heading\">Cancelling a pairing<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Press <strong>C<\/strong> or <strong>Esc<\/strong> while the pairing runs. The setup menu stays open and the bottom line reads <strong>Pairing cancelled.<\/strong> With an option ROM older than 08F9, <strong>Esc<\/strong> leaves the setup menu and the pairing goes on until it times out: use <strong>C<\/strong>. When nothing is pairing, <strong>Esc<\/strong> leaves the setup menu as on the other pages.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized has-custom-border\"><img loading=\"lazy\" decoding=\"async\" width=\"720\" height=\"400\" src=\"https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_cancelled.png\" alt=\"After C or Esc: Status Ready, Pairing cancelled\" class=\"wp-image-1443\" style=\"border-radius:6px;width:560px;height:auto\" srcset=\"https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_cancelled.png 720w, https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_cancelled-300x167.png 300w, https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_cancelled-600x333.png 600w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\" \/><figcaption class=\"wp-element-caption\">After C or Esc: &#8216;Status : Ready&#8217;, &#8216;Pairing cancelled.&#8217;<\/figcaption><\/figure>\n\n\n\n<h2 id=\"pairing-from-the-screenpad\" class=\"wp-block-heading\">Pairing from the screenpad<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The screenpad does not need the setup menu: you can pair a device while the PS\/2 runs a program, or before it has booted.<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Put the device in pairing mode.<\/li>\n\n\n\n<li>On the screenpad, open <strong>Others &gt; Bluetooth<\/strong>. The first row shows the status, for example <strong>Ready &#8211; 0 connected<\/strong>.<\/li>\n<\/ol>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-2 wp-block-gallery-2 is-layout-flex wp-block-gallery-is-layout-flex\" style=\"margin-top:24px;margin-bottom:24px\">\n<figure class=\"wp-block-image size-full has-custom-border\"><img loading=\"lazy\" decoding=\"async\" width=\"512\" height=\"256\" data-id=\"1466\" src=\"https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_screenpad_bt_others_menu.png\" alt=\"The Others menu with the bar on Bluetooth\" class=\"wp-image-1466\" style=\"border-radius:6px\" srcset=\"https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_screenpad_bt_others_menu.png 512w, https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_screenpad_bt_others_menu-300x150.png 300w\" sizes=\"auto, (max-width: 512px) 100vw, 512px\" \/><figcaption class=\"wp-element-caption\">The Others menu with the bar on Bluetooth<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full has-custom-border\"><img loading=\"lazy\" decoding=\"async\" width=\"512\" height=\"256\" data-id=\"1470\" src=\"https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_screenpad_bt_ready_empty.png\" alt=\"The Bluetooth page: Ready - 0 connected, Bluetooth On, Scan under the bar, Found (0)\" class=\"wp-image-1470\" style=\"border-radius:6px\" srcset=\"https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_screenpad_bt_ready_empty.png 512w, https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_screenpad_bt_ready_empty-300x150.png 300w\" sizes=\"auto, (max-width: 512px) 100vw, 512px\" \/><figcaption class=\"wp-element-caption\">Ready &#8211; 0 connected, Bluetooth On, Scan under the bar, Found (0), None: scan first<\/figcaption><\/figure>\n<\/figure>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li>Select <strong>Scan<\/strong> and press <strong>ENTER<\/strong>. The status counts the 10 seconds (<strong>Scanning 10 s<\/strong>), the row reads <strong>Stop scan<\/strong>, and the devices appear under <strong>Found<\/strong> with their kind and their signal.<\/li>\n\n\n\n<li>Move the bar to the device. The title line says <strong>ENT pair<\/strong>. Press <strong>ENTER<\/strong>.<\/li>\n<\/ol>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-2 wp-block-gallery-3 is-layout-flex wp-block-gallery-is-layout-flex\" style=\"margin-top:24px;margin-bottom:24px\">\n<figure class=\"wp-block-image size-full has-custom-border\"><img loading=\"lazy\" decoding=\"async\" width=\"512\" height=\"256\" data-id=\"1471\" src=\"https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_screenpad_bt_scanning_7s_found.png\" alt=\"Scanning 7 s, Stop scan under the bar, Found (2), Wireless Con DS4 -45\" class=\"wp-image-1471\" style=\"border-radius:6px\" srcset=\"https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_screenpad_bt_scanning_7s_found.png 512w, https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_screenpad_bt_scanning_7s_found-300x150.png 300w\" sizes=\"auto, (max-width: 512px) 100vw, 512px\" \/><figcaption class=\"wp-element-caption\">Scanning 7 s, Stop scan under the bar, Found (2), Wireless Con DS4 -45<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full has-custom-border\"><img loading=\"lazy\" decoding=\"async\" width=\"512\" height=\"256\" data-id=\"1464\" src=\"https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_screenpad_bt_found_selected.png\" alt=\"The bar on a found DualShock 4; the title line says ENT pair\" class=\"wp-image-1464\" style=\"border-radius:6px\" srcset=\"https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_screenpad_bt_found_selected.png 512w, https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_screenpad_bt_found_selected-300x150.png 300w\" sizes=\"auto, (max-width: 512px) 100vw, 512px\" \/><figcaption class=\"wp-element-caption\">The bar on a found DualShock 4; the title line says ENT pair<\/figcaption><\/figure>\n<\/figure>\n\n\n\n<ol start=\"5\" class=\"wp-block-list\">\n<li>The pairing screen shows the device and <strong>RET cancel<\/strong>. A keyboard shows its code in large digits instead: type it on the Bluetooth keyboard, then its <strong>Enter<\/strong> key.<\/li>\n\n\n\n<li>The title line reads <strong>Paired<\/strong> and the name for 4 seconds, then the list comes back.<\/li>\n<\/ol>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-3 wp-block-gallery-4 is-layout-flex wp-block-gallery-is-layout-flex\" style=\"margin-top:24px;margin-bottom:24px\">\n<figure class=\"wp-block-image size-full has-custom-border\"><img loading=\"lazy\" decoding=\"async\" width=\"512\" height=\"256\" data-id=\"1468\" src=\"https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_screenpad_bt_pairing_justworks.png\" alt=\"Pairing 30 s, Keychron K2, RET cancel\" class=\"wp-image-1468\" style=\"border-radius:6px\" srcset=\"https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_screenpad_bt_pairing_justworks.png 512w, https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_screenpad_bt_pairing_justworks-300x150.png 300w\" sizes=\"auto, (max-width: 512px) 100vw, 512px\" \/><figcaption class=\"wp-element-caption\">Pairing 30 s, Keychron K2, RET cancel<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full has-custom-border\"><img loading=\"lazy\" decoding=\"async\" width=\"512\" height=\"256\" data-id=\"1469\" src=\"https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_screenpad_bt_passkey_0.png\" alt=\"Type on keyboard: 004271 in large digits, 0\/6 typed, RET cancel\" class=\"wp-image-1469\" style=\"border-radius:6px\" srcset=\"https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_screenpad_bt_passkey_0.png 512w, https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_screenpad_bt_passkey_0-300x150.png 300w\" sizes=\"auto, (max-width: 512px) 100vw, 512px\" \/><figcaption class=\"wp-element-caption\">Type on keyboard: 004271, then press Enter, 0\/6 typed<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full has-custom-border\"><img loading=\"lazy\" decoding=\"async\" width=\"512\" height=\"256\" data-id=\"1467\" src=\"https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_screenpad_bt_paired_ok.png\" alt=\"The title line reads Paired Keychron K2, the status Ready - 1 connected\" class=\"wp-image-1467\" style=\"border-radius:6px\" srcset=\"https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_screenpad_bt_paired_ok.png 512w, https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_screenpad_bt_paired_ok-300x150.png 300w\" sizes=\"auto, (max-width: 512px) 100vw, 512px\" \/><figcaption class=\"wp-element-caption\">Paired Keychron K2, Ready &#8211; 1 connected<\/figcaption><\/figure>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>RET<\/strong> on the pairing screen cancels the pairing (and answers &#8220;no&#8221; to a number to compare). The other pairing screens (PIN, number to compare) are in the <a href=\"https:\/\/www.r3tr0.net\/index.php\/wondermca-documentation\/wmdoc_screenpad\/\">screenpad reference<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>The pairing screen comes by itself.<\/strong> When a pairing starts while the screenpad shows another page (for example a pairing started from the setup menu), the screenpad opens the pairing screen over that page, lights up if it was asleep, and goes back to that page, as you left it, 4 seconds after the result.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>The blue LED<\/strong> blinks while a scan or a pairing runs. Afterwards it gives a short flash, at most twice a second, while a connected keyboard, mouse or pad sends input, and is dark otherwise (firmware 0901 and later; before, it stayed on as long as a device was connected).<\/p>\n\n\n\n<h2 id=\"using-the-devices\" class=\"wp-block-heading\">Using the devices<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Keyboard.<\/strong> It types like the USB keyboard: national layouts with <code class=\"\" data-line=\"\">KEYB<\/code>, Ctrl-Alt-Del, the repeat of a held key. It needs <strong>USB Keyboard<\/strong> On. A USB keyboard and a Bluetooth keyboard can be used together.<\/li>\n\n\n\n<li><strong>Mouse.<\/strong> It is the serial mouse at COM2, with the same drivers and the same rules as the USB mouse (<a href=\"https:\/\/www.r3tr0.net\/index.php\/wondermca-documentation\/wmdoc_usb\/\">USB devices<\/a>): <strong>USB Mouse<\/strong> On, <strong>USB Mouse (COM2)<\/strong> Enabled on the Reference Diskette, the serial port 2 of the system board off. The left and right buttons and the movement reach the PS\/2; the middle button, the side buttons and the wheel do not.<\/li>\n\n\n\n<li><strong>Game pad.<\/strong> It is a joystick on the game port (<a href=\"https:\/\/www.r3tr0.net\/index.php\/wondermca-documentation\/wmdoc_sound-game-port\/\">sound and game port<\/a>): <strong>Joystick Enable<\/strong> on the Reference Diskette, <strong>USB Host<\/strong> and <strong>USB Joystick<\/strong> On. Two pads give two players; a USB pad and a Bluetooth pad also give two players. <code class=\"\" data-line=\"\">JOYTEST<\/code> on the tools floppy shows the sticks and the buttons.<\/li>\n<\/ul>\n\n\n\n<h2 id=\"bluetooth-headphones\" class=\"wp-block-heading\">Bluetooth headphones<\/h2>\n\n<p class=\"wp-block-paragraph\">The card can play its sound on Bluetooth headphones or a Bluetooth speaker instead of the 3.5 mm jack.<\/p>\n\n<ol class=\"wp-block-list\">\n<li>Pair the headphones on this page like any device: they show as <strong>AUDIO<\/strong> in the setup menu, <strong>audio<\/strong> on the screenpad.<\/li>\n\n\n\n<li>On the <strong>Audio<\/strong> page of the setup menu, set <strong>Output<\/strong> to <strong>BT<\/strong> (<strong>Enter<\/strong> goes through <strong>Off<\/strong>, <strong>Jack<\/strong>, <strong>BT<\/strong>), then <strong>Esc<\/strong> to save. On the screenpad: <strong>Sound<\/strong> page, <strong>Output<\/strong>. In <code class=\"\" data-line=\"\">config.txt<\/code>: <code class=\"\" data-line=\"\">AUDIO_OUT BT<\/code>.<\/li>\n<\/ol>\n\n<p class=\"wp-block-paragraph\">The sound moves to the headphones at once, and the jack is silent. <strong>Output<\/strong> back on <strong>Jack<\/strong> gives the jack again. The <strong>Audio<\/strong> page shows the headphones to the right of <strong>Output<\/strong>: <strong>&gt; Bluetooth:<\/strong> with the name and <strong>playing<\/strong>, <strong>connected<\/strong> or <strong>connecting<\/strong>, or <strong>&gt; headset not connected<\/strong>, <strong>&gt; headset out of range<\/strong>, <strong>&gt; no headset paired<\/strong>. All the details are on <a href=\"https:\/\/www.r3tr0.net\/index.php\/wondermca-documentation\/wmdoc_sound-game-port\/#bluetooth-headphones\">Sound and game port<\/a>.<\/p>\n\n<ul class=\"wp-block-list\">\n<li>At a power-on, and when you set <strong>Output<\/strong> to <strong>BT<\/strong>, the card connects to the paired headphones by itself; headphones that connect by themselves are accepted too. If they do not answer, the card tries again every 10 seconds while <strong>Output<\/strong> is <strong>BT<\/strong>.<\/li>\n\n\n\n<li>One pair of headphones is kept: pairing others forgets the first ones. <strong>Forget<\/strong> works as for any device.<\/li>\n\n\n\n<li>Setting <strong>Output<\/strong> to <strong>BT<\/strong> makes the headphones say <strong>&#8220;Wonder Bluetooth&#8221;<\/strong> after about 3 seconds.<\/li>\n\n\n\n<li>On <strong>BT<\/strong> the screenpad&#8217;s <strong>Volume<\/strong> is the Bluetooth volume, 70 % at every start (<a href=\"https:\/\/www.r3tr0.net\/index.php\/wondermca-documentation\/wmdoc_sound-game-port\/#bluetooth-headphones\">Sound and game port<\/a>).<\/li>\n\n\n\n<li>The headphones work together with the game pads, keyboards and mice.<\/li>\n\n\n\n<li>The sound reaches the headphones a little later than the jack, by an amount that depends on the headphones.<\/li>\n\n\n\n<li>Only in the 16-bit firmware with Bluetooth.<\/li>\n<\/ul>\n\n<h2 id=\"after-a-restart-or-a-power-cycle\" class=\"wp-block-heading\">After a restart or a power cycle<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The paired devices come back by themselves after a restart of the PS\/2 and after a power cycle, once Bluetooth has started: switch the device on (on a Sony pad, press <strong>PS<\/strong>; on a Switch-style pad, <strong>Home<\/strong>).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">You can also connect a paired device from the list: in the setup menu, select it under <strong>Paired devices<\/strong> and press <strong>Enter<\/strong> (<strong>Connecting&#8230;<\/strong>, with the seconds left; <strong>Esc<\/strong> or <strong>C<\/strong> cancels). On the screenpad, press <strong>ENTER<\/strong> briefly on it.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized has-custom-border\"><img loading=\"lazy\" decoding=\"async\" width=\"720\" height=\"400\" src=\"https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_connecting.png\" alt=\"Connecting a paired keyboard: Status Connecting, 4 s left, Desk Keyboard KBD connecting\" class=\"wp-image-1446\" style=\"border-radius:6px;width:560px;height:auto\" srcset=\"https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_connecting.png 720w, https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_connecting-300x167.png 300w, https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_connecting-600x333.png 600w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\" \/><figcaption class=\"wp-element-caption\">Connecting a paired keyboard: &#8216;Status : Connecting&#8230; (4 s left)&#8217;, Desk Keyboard KBD connecting<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">The <strong>Paired devices<\/strong> list shows the state of each device: <strong>connected<\/strong>, <strong>paired<\/strong> (known, not connected), <strong>connecting<\/strong>, or <strong>out of range<\/strong> (the device did not answer).<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized has-custom-border\"><img loading=\"lazy\" decoding=\"async\" width=\"720\" height=\"400\" src=\"https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_lists.png\" alt=\"Five discovered devices, page 1\/2, and two paired devices: Player One Pad PAD connected, Desk Keyboard KBD paired\" class=\"wp-image-1453\" style=\"border-radius:6px;width:560px;height:auto\" srcset=\"https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_lists.png 720w, https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_lists-300x167.png 300w, https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_lists-600x333.png 600w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\" \/><figcaption class=\"wp-element-caption\">Five discovered devices, page 1\/2, and two paired devices: Player One Pad PAD connected, Desk Keyboard KBD paired<\/figcaption><\/figure>\n\n\n\n<h2 id=\"forgetting-a-device\" class=\"wp-block-heading\">Forgetting a device<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>One device, setup menu.<\/strong> Select it under <strong>Paired devices<\/strong> and press <strong>Del<\/strong> or <strong>F<\/strong>. The bottom line reads <strong>Forgot<\/strong> and its name.<\/li>\n\n\n\n<li><strong>One device, screenpad.<\/strong> Hold <strong>ENTER<\/strong> for one second on it (the title line says <strong>HOLD forget<\/strong>). The screen asks <strong>Forget device?<\/strong>: <strong>ENTER<\/strong> forgets it, <strong>RET<\/strong> keeps it.<\/li>\n\n\n\n<li><strong>All devices, setup menu.<\/strong> On <strong>Forget all paired devices<\/strong>, press <strong>Enter<\/strong>. The bottom line asks <strong>Forget ALL paired devices? Enter again to confirm, any other key cancels.<\/strong> Press <strong>Enter<\/strong> again.<\/li>\n\n\n\n<li><strong>All devices, screenpad.<\/strong> <strong>Forget all<\/strong>, then <strong>ENTER<\/strong> to confirm or <strong>RET<\/strong> to keep them.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized has-custom-border\"><img loading=\"lazy\" decoding=\"async\" width=\"720\" height=\"400\" src=\"https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_forget_all.png\" alt=\"Enter on Forget all paired devices: Enter again to confirm, any other key cancels\" class=\"wp-image-1451\" style=\"border-radius:6px;width:560px;height:auto\" srcset=\"https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_forget_all.png 720w, https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_forget_all-300x167.png 300w, https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_forget_all-600x333.png 600w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\" \/><figcaption class=\"wp-element-caption\">Enter on Forget all paired devices: &#8216;Forget ALL paired devices? Enter again to confirm, any other key cancels.&#8217;<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">A forgotten device is no longer accepted when it tries to connect. To use it again, pair it again. Forget a device from the setup menu or the screenpad rather than by editing the files of the microSD card.<\/p>\n\n\n\n<h2 id=\"the-setup-page-in-detail\" class=\"wp-block-heading\">The setup page in detail<\/h2>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table><thead><tr><th>Row<\/th><th>What it shows or does<\/th><\/tr><\/thead><tbody><tr><td><strong>Status :<\/strong><\/td><td><strong>Off (the stack is not running)<\/strong>, <strong>Starting (loading the Bluetooth firmware)<\/strong>, <strong>Ready<\/strong>, <strong>Ready &#8211; n connected<\/strong>, <strong>Scanning (10 s)&#8230;<\/strong>, <strong>Scanning: reading the names&#8230;<\/strong>, <strong>Pairing&#8230;<\/strong>, <strong>Connecting&#8230;<\/strong>. During a pairing or a connect, the seconds left follow, such as <strong>(52 s left)<\/strong><\/td><\/tr><tr><td><strong>Address:<\/strong><\/td><td>The Bluetooth address of the card<\/td><\/tr><tr><td><strong>Bluetooth :<\/strong><\/td><td><strong>On<\/strong> or <strong>Off<\/strong> for this power-on, and what <strong>Enter<\/strong> does (<a href=\"#switching-bluetooth-on\">Switching Bluetooth on<\/a>)<\/td><\/tr><tr><td>The code row<\/td><td>Only during a pairing that asks for a code<\/td><\/tr><tr><td><strong>Scan for devices (10 s)<\/strong><\/td><td><strong>Enter<\/strong> starts a 10-second scan. It reads <strong>Stop the scan (S or C)<\/strong> while a scan runs<\/td><\/tr><tr><td><strong>Forget all paired devices<\/strong><\/td><td><strong>Enter<\/strong> asks first, a second <strong>Enter<\/strong> forgets them all<\/td><\/tr><tr><td><strong>Discovered devices (n)<\/strong><\/td><td>The devices of the last scan: name, kind, signal in dBm (<strong>&#8211;<\/strong> when not known), <strong>LE<\/strong> for BLE. <strong>Enter<\/strong> pairs the selected one. Four rows per page: <strong>page 1\/2<\/strong> shows when there are more<\/td><\/tr><tr><td><strong>Paired devices (n)<\/strong><\/td><td>Name, kind, state. <strong>Enter<\/strong> connects the selected one, <strong>Del<\/strong> or <strong>F<\/strong> forgets it<\/td><\/tr><tr><td>The bottom line<\/td><td>What happens, the result of the last action, or a short list of the keys. An error is in red<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table><thead><tr><th>Key<\/th><th>What it does<\/th><\/tr><\/thead><tbody><tr><td><strong>Up<\/strong>, <strong>Down<\/strong><\/td><td>Move the cursor. It wraps around<\/td><\/tr><tr><td><strong>Home<\/strong>, <strong>End<\/strong><\/td><td>First and last row<\/td><\/tr><tr><td><strong>PgUp<\/strong>, <strong>PgDn<\/strong><\/td><td>Page the list the cursor is in<\/td><\/tr><tr><td><strong>Enter<\/strong><\/td><td>Act on the row; <strong>yes<\/strong> to a number to compare<\/td><\/tr><tr><td><strong>S<\/strong><\/td><td>Start or stop a scan<\/td><\/tr><tr><td><strong>C<\/strong><\/td><td>Cancel a pairing, a connect or a scan<\/td><\/tr><tr><td><strong>Y<\/strong>, <strong>N<\/strong><\/td><td>Yes or no to a number to compare<\/td><\/tr><tr><td><strong>Del<\/strong> or <strong>F<\/strong><\/td><td>Forget the selected paired device<\/td><\/tr><tr><td><strong>Left<\/strong>, <strong>Right<\/strong><\/td><td>The other pages of the setup menu<\/td><\/tr><tr><td><strong>Esc<\/strong><\/td><td>Cancel a pairing or a connect that runs (option ROM 08F9 and later); otherwise leave the setup menu<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">The page follows the card by itself: a device found, a pairing that ends or a pad that connects shows without a key press.<\/p>\n\n\n\n<h2 id=\"the-files-on-the-microsd-card\" class=\"wp-block-heading\">The files on the microSD card<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The card writes three files in the root of the microSD card:<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table><thead><tr><th>File<\/th><th>What it holds<\/th><th>Can you edit it?<\/th><\/tr><\/thead><tbody><tr><td><code class=\"\" data-line=\"\">BTBOND.BIN<\/code><\/td><td>The pairing keys of the paired devices<\/td><td>No. If it is damaged, the card ignores it and starts with no pairing: pair the devices again<\/td><\/tr><tr><td><code class=\"\" data-line=\"\">BTDEV.TXT<\/code><\/td><td>The paired devices, one per line: address, name, kind (<code class=\"\" data-line=\"\">pad<\/code>, <code class=\"\" data-line=\"\">mouse<\/code>, <code class=\"\" data-line=\"\">kbd<\/code>, <code class=\"\" data-line=\"\">audio<\/code> or <code class=\"\" data-line=\"\">any<\/code>)<\/td><td>You can read it. Deleting a line makes the card refuse that device, but prefer <strong>Del<\/strong> in the setup menu<\/td><\/tr><tr><td><code class=\"\" data-line=\"\">BTSET.TXT<\/code><\/td><td>The <strong>Bluetooth<\/strong> On\/Off switch of the setup menu and the screenpad: <code class=\"\" data-line=\"\">BLUETOOTH ON<\/code> or <code class=\"\" data-line=\"\">BLUETOOTH OFF<\/code><\/td><td>No: use the switch, or a <code class=\"\" data-line=\"\">BT<\/code> line in <code class=\"\" data-line=\"\">config.txt<\/code>. A file that the card cannot read counts as Off<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">A line of <code class=\"\" data-line=\"\">BTDEV.TXT<\/code> looks like this (the address and the name are examples):<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code class=\"\" data-line=\"\">AA:BB:CC:00:00:01 Wireless Controller pad<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Keep the three files when you copy the microSD card to another one.<\/p>\n\n\n\n<h2 id=\"limits\" class=\"wp-block-heading\">Limits<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>At most four devices connected at once, two of them game pads and one of them headphones. A third pad is refused: <strong>Refused: two pads are connected already.<\/strong><\/li>\n\n\n\n<li>Eight paired devices remembered, eight devices kept from one scan.<\/li>\n\n\n\n<li>No rumble. The card sends nothing to a BLE device: no rumble, no light.<\/li>\n\n\n\n<li>The mouse is a two-button serial mouse: no middle button, no side buttons, no wheel.<\/li>\n\n\n\n<li>One pair of Bluetooth headphones or one speaker at a time; no microphone, and the play, pause and track keys of the headphones are not used. The sound reaches them a little later than the jack.<\/li>\n\n\n\n<li>Bluetooth needs the network type <strong>WiFi<\/strong> or <strong>Radio only<\/strong>. It does not run with Ethernet or USB Ethernet.<\/li>\n\n\n\n<li>Switching Bluetooth on or off, and changing the network type, take effect at the next power-on.<\/li>\n\n\n\n<li>A device that shows a code and wants it typed on the computer is not supported: <strong>Not supported: the device wants a code typed on the card.<\/strong><\/li>\n\n\n\n<li>Of a BLE device, only its first input function is read.<\/li>\n\n\n\n<li>A BLE device that was paired again with another computer no longer connects, and nothing is shown: forget it and pair it again.<\/li>\n\n\n\n<li>If <code class=\"\" data-line=\"\">BTBOND.BIN<\/code> is lost, the BLE devices lose their <strong>LE<\/strong> mark in the list: forget them and pair them again.<\/li>\n\n\n\n<li><strong>Forget all<\/strong> does not forget a BLE device whose line you deleted by hand from <code class=\"\" data-line=\"\">BTDEV.TXT<\/code>: forget devices from the setup menu or the screenpad.<\/li>\n\n\n\n<li>Under OS\/2 and Windows, the Bluetooth devices are not verified.<\/li>\n<\/ul>\n\n\n\n<h2 id=\"problems\" class=\"wp-block-heading\">Problems<\/h2>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table><thead><tr><th>What you see<\/th><th>What to do<\/th><\/tr><\/thead><tbody><tr><td>The setup menu has no <strong>Bluetooth<\/strong> title, the screenpad no <strong>Bluetooth<\/strong> row<\/td><td>The firmware has no Bluetooth (the 8-bit build). Install the 16-bit firmware<\/td><\/tr><tr><td><strong>Bluetooth is disabled.<\/strong><\/td><td>Switch it on with <strong>Enter<\/strong> on the row, then power-cycle. If the page says <strong>config.txt on the SD card has BT 0<\/strong>, change the line to <code class=\"\" data-line=\"\">BT 1<\/code> or remove it<\/td><\/tr><tr><td><strong>Radio not available with this Network type (use WiFi or Radio only).<\/strong><\/td><td>Set the network type to <strong>WiFi<\/strong> or <strong>Radio only<\/strong> on the <strong>Network<\/strong> page, leave the setup menu, power-cycle<\/td><\/tr><tr><td><strong>The Bluetooth radio is off: the WiFi radio did not come up.<\/strong><\/td><td>Check <code class=\"\" data-line=\"\">wifi.txt<\/code> (with <strong>WiFi<\/strong>) and the antenna, then power-cycle. With <strong>Radio only<\/strong>, power-cycle<\/td><\/tr><tr><td><strong>The Bluetooth stack did not start.<\/strong><\/td><td>Power-cycle. If it stays, collect a log (<a href=\"#the-console\">below<\/a>)<\/td><\/tr><tr><td><strong>(the change could not be saved: check the SD card)<\/strong> on the <strong>Bluetooth<\/strong> row, <strong>Could not save<\/strong> on the screenpad<\/td><td>The microSD card is missing or write-protected<\/td><\/tr><tr><td>The device does not appear in <strong>Discovered devices<\/strong><\/td><td>Put it in pairing mode again, closer to the PS\/2, and scan again<\/td><\/tr><tr><td><strong>Not found: the device is switched off or out of range.<\/strong><\/td><td>Switch the device on, bring it closer, try again<\/td><\/tr><tr><td><strong>Timed out: the code was not typed on the keyboard in time.<\/strong><\/td><td>Pair again and type the code within 60 seconds, on the Bluetooth keyboard, then its <strong>Enter<\/strong> key<\/td><\/tr><tr><td><strong>Timed out: the PIN was not typed on the keyboard in time.<\/strong>, <strong>Timed out: the number was not confirmed in time.<\/strong><\/td><td>The same, for a PIN or a number to compare<\/td><\/tr><tr><td><strong>Timed out: the device did not answer.<\/strong><\/td><td>Put the device in pairing mode again and retry<\/td><\/tr><tr><td><strong>Pairing failed: wrong code, or the device refused<\/strong><\/td><td>Pair again and type the code carefully, on the Bluetooth keyboard<\/td><\/tr><tr><td><strong>Refused: two pads are connected already.<\/strong><\/td><td>Switch one pad off, or unplug the USB pad<\/td><\/tr><tr><td><strong>Refused: no free connection.<\/strong><\/td><td>Four devices are connected: switch one off<\/td><\/tr><tr><td><strong>Refused: the stack is busy or not ready.<\/strong>, <strong>Busy: the previous request is still being served, try again.<\/strong><\/td><td>Wait a second and try again<\/td><\/tr><tr><td>A paired device does not come back after a power cycle<\/td><td>Press a key or a button of the device (<strong>PS<\/strong> on a Sony pad, <strong>Home<\/strong> on a Switch-style pad). Or select it under <strong>Paired devices<\/strong> and press <strong>Enter<\/strong>. If it shows <strong>out of range<\/strong>, bring it closer. If it still does not connect, forget it and pair it again<\/td><\/tr><tr><td>The Bluetooth keyboard types nothing<\/td><td><strong>USB Keyboard<\/strong> On on the <strong>USB<\/strong> page, and no <code class=\"\" data-line=\"\">USB_KEYBOARD 0<\/code> in <code class=\"\" data-line=\"\">config.txt<\/code><\/td><\/tr><tr><td>The Bluetooth mouse does not move<\/td><td>As for the USB mouse: <a href=\"https:\/\/www.r3tr0.net\/index.php\/wondermca-documentation\/wmdoc_troubleshooting\/\">troubleshooting<\/a><\/td><\/tr><tr><td>The Bluetooth pad does nothing<\/td><td><strong>Joystick Enable<\/strong>, <strong>USB Host<\/strong> and <strong>USB Joystick<\/strong>, as for the USB pad (<a href=\"https:\/\/www.r3tr0.net\/index.php\/wondermca-documentation\/wmdoc_sound-game-port\/\">sound and game port<\/a>)<\/td><\/tr><tr><td>No sound in the Bluetooth headphones<\/td><td><strong>Output<\/strong> on the <strong>Audio<\/strong> page must read <strong>BT<\/strong>, and the text to its right <strong>playing<\/strong>. <strong>&gt; no headset paired<\/strong>: pair them. <strong>&gt; headset not connected<\/strong> or <strong>out of range<\/strong>: switch them on, bring them closer; the card tries again every 10 seconds. A line <code class=\"\" data-line=\"\">AUDIO_OUT JACK<\/code> or <code class=\"\" data-line=\"\">AUDIO_OUT OFF<\/code> in <code class=\"\" data-line=\"\">config.txt<\/code> wins over the setting<\/td><\/tr><tr><td><strong>Output<\/strong> offers no <strong>BT<\/strong><\/td><td>The firmware has no Bluetooth audio. Install the 16-bit firmware with Bluetooth<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-2 wp-block-gallery-5 is-layout-flex wp-block-gallery-is-layout-flex\" style=\"margin-top:24px;margin-bottom:24px\">\n<figure class=\"wp-block-image size-full has-custom-border\"><img loading=\"lazy\" decoding=\"async\" width=\"720\" height=\"400\" data-id=\"1447\" src=\"https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_error_timeout.png\" alt=\"The red line after a pairing that timed out: Timed out: the device did not answer\" class=\"wp-image-1447\" style=\"border-radius:6px\" srcset=\"https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_error_timeout.png 720w, https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_error_timeout-300x167.png 300w, https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_error_timeout-600x333.png 600w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\" \/><figcaption class=\"wp-element-caption\">After a pairing that timed out: &#8216;Timed out: the device did not answer.&#8217;<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full has-custom-border\"><img loading=\"lazy\" decoding=\"async\" width=\"720\" height=\"400\" data-id=\"1448\" src=\"https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_error_wrong_code.png\" alt=\"The red line after a wrong code: Pairing failed: wrong code, or the device refused (status 05)\" class=\"wp-image-1448\" style=\"border-radius:6px\" srcset=\"https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_error_wrong_code.png 720w, https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_error_wrong_code-300x167.png 300w, https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_error_wrong_code-600x333.png 600w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\" \/><figcaption class=\"wp-element-caption\">After a wrong code: &#8216;Pairing failed: wrong code, or the device refused (status 05)&#8217;<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full has-custom-border\"><img loading=\"lazy\" decoding=\"async\" width=\"720\" height=\"400\" data-id=\"1454\" src=\"https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_no_radio.png\" alt=\"Radio not available with this Network type (use WiFi or Radio only)\" class=\"wp-image-1454\" style=\"border-radius:6px\" srcset=\"https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_no_radio.png 720w, https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_no_radio-300x167.png 300w, https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_no_radio-600x333.png 600w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\" \/><figcaption class=\"wp-element-caption\">The network type gives no radio: &#8216;Radio not available with this Network type (use WiFi or Radio only).&#8217;<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full has-custom-border\"><img loading=\"lazy\" decoding=\"async\" width=\"720\" height=\"400\" data-id=\"1460\" src=\"https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_radio_down.png\" alt=\"The Bluetooth radio is off: the WiFi radio did not come up\" class=\"wp-image-1460\" style=\"border-radius:6px\" srcset=\"https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_radio_down.png 720w, https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_radio_down-300x167.png 300w, https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_bios_setup_bluetooth_radio_down-600x333.png 600w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\" \/><figcaption class=\"wp-element-caption\">The radio did not come up: &#8216;The Bluetooth radio is off: the WiFi radio did not come up.&#8217;<\/figcaption><\/figure>\n<\/figure>\n\n\n\n<h3 id=\"the-console\" class=\"wp-block-heading\">The console<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The console (<a href=\"https:\/\/www.r3tr0.net\/index.php\/wondermca-documentation\/wmdoc_troubleshooting\/\">troubleshooting<\/a>) prints the Bluetooth lines with the tag <code class=\"\" data-line=\"\">[BT]<\/code>. A good start reads:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code class=\"\" data-line=\"\">[DSK][CFG] BT 1\n[BT] starting BTstack (BT firmware download)\n[BT] BTstack up, BD_ADDR AA:BB:CC:DD:EE:FF<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Without a radio it reads <code class=\"\" data-line=\"\">[BT] off: Bluetooth needs NetType = WiFi or Radio only (the RM2 is not powered otherwise)<\/code>. During a pairing it prints the code (<code class=\"\" data-line=\"\">[BT] passkey ... type it on the keyboard, then Enter<\/code>) and the result. Send these lines with your report.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\" style=\"margin-top:48px;margin-bottom:24px\"\/>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<div class=\"wp-block-group has-background is-layout-constrained wp-container-core-group-is-layout-0ee9f569 wp-block-group-is-layout-constrained\" style=\"border-radius:8px;background-color:#f6f7f7;padding-top:14px;padding-right:18px;padding-bottom:14px;padding-left:18px\">\n<p class=\"has-text-align-left has-text-color wp-block-paragraph\" style=\"color:#0f62fe;margin-bottom:2px;font-size:12px;font-weight:600;letter-spacing:2px;text-transform:uppercase\">\u2190 Previous<\/p>\n\n\n\n<p class=\"has-text-align-left wp-block-paragraph\" style=\"margin-top:0;font-size:17px;font-weight:600\"><a href=\"https:\/\/www.r3tr0.net\/index.php\/wondermca-documentation\/wmdoc_troubleshooting\/\">Troubleshooting, FAQ and codes<\/a><\/p>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<div class=\"wp-block-group has-background is-layout-constrained wp-container-core-group-is-layout-0ee9f569 wp-block-group-is-layout-constrained\" style=\"border-radius:8px;background-color:#f6f7f7;padding-top:14px;padding-right:18px;padding-bottom:14px;padding-left:18px\">\n<p class=\"has-text-align-right has-text-color wp-block-paragraph\" style=\"color:#0f62fe;margin-bottom:2px;font-size:12px;font-weight:600;letter-spacing:2px;text-transform:uppercase\">Related \u2192<\/p>\n\n\n\n<p class=\"has-text-align-right wp-block-paragraph\" style=\"margin-top:0;font-size:17px;font-weight:600\"><a href=\"https:\/\/www.r3tr0.net\/index.php\/wondermca-documentation\/wmdoc_usb\/\">USB devices<\/a><\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<p class=\"has-text-align-center has-text-color wp-block-paragraph\" style=\"color:#787c82;margin-top:20px;font-size:13px\">WonderMCA user documentation \u00b7 <a href=\"https:\/\/www.r3tr0.net\/index.php\/wondermca-documentation\/\">Documentation home<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Bluetooth keyboards, mice, game pads and headphones on the PS\/2, Classic and Bluetooth Low Energy: what you need, switching Bluetooth on, pairing from the setup menu or the screenpad, the codes a keyboard asks for, reconnecting, forgetting a device, the files on the microSD card, the limits and the problems.<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":1277,"menu_order":19,"comment_status":"closed","ping_status":"closed","template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center 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center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"tags":[],"class_list":["post-1472","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the 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