{"id":5256,"date":"2026-04-09T23:17:08","date_gmt":"2026-04-09T21:17:08","guid":{"rendered":"https:\/\/reparationmac.be\/?p=5256"},"modified":"2026-04-09T23:17:19","modified_gmt":"2026-04-09T21:17:19","slug":"mac-bluetooth-not-working","status":"publish","type":"post","link":"https:\/\/reparationmac.be\/en\/bluetooth-mac-ne-fonctionne-plus\/","title":{"rendered":"Bluetooth Mac"},"content":{"rendered":"<div class=\"article-blog\">\n\n<h1>Bluetooth Mac unavailable: 10 solutions for recovering the connection<\/h1>\n\n<div class=\"article-meta\">Reading : 11 min | Troubleshooting<\/div>\n\n<img fetchpriority=\"high\" decoding=\"async\" src=\"\/wp-content\/uploads\/2026\/04\/bluetooth-mac-ne-fonctionne-plus.webp\" alt=\"Bluetooth Mac unavailable: full troubleshooting guide\" title=\"10 ways to fix a broken Bluetooth Mac\" width=\"1200\" height=\"568\" loading=\"eager\">\n\n<div class=\"answer-box\">\nTo sum up: if your Mac's Bluetooth displays \u00abBluetooth not available\u00bb or refuses to activate, restart the Mac first. If the problem persists, delete the Bluetooth .plist files, reset the Bluetooth module via the hidden menu (Shift + Option + click on the Bluetooth icon) on Intel Macs, or reset the NVRAM. On Apple Silicon Macs, these options have disappeared - a reboot in safe mode is often the solution. Hardware failure of the Bluetooth module is rare but repairable.\n<\/div>\n\n<div class=\"toc-box\">\n<strong>Contents<\/strong>\n<ul>\n<li><a href=\"#causes\">Why Bluetooth no longer works on the Mac<\/a><\/li>\n<li><a href=\"#redemarrer-bluetooth\">Restart Bluetooth properly<\/a><\/li>\n<li><a href=\"#supprimer-plist\">Delete Bluetooth .plist files<\/a><\/li>\n<li><a href=\"#reinitialiser-module\">Reset the Bluetooth module (Mac Intel)<\/a><\/li>\n<li><a href=\"#nvram-smc\">NVRAM, SMC and Mac Apple Silicon<\/a><\/li>\n<li><a href=\"#interferences\">Interference and connection limits<\/a><\/li>\n<li><a href=\"#materiel\">When the Bluetooth module fails<\/a><\/li>\n<li><a href=\"#faq\">Frequently asked questions<\/a><\/li>\n<\/ul>\n<\/div>\n\n<h2 id=\"causes\">Why Bluetooth no longer works on the Mac<\/h2>\n\n<p>Bluetooth is a temperamental technology that can fail for a variety of reasons. On the Mac, the symptoms range from the mild (\u00abmy AirPods sometimes disconnect\u00bb) to the critical (\u00abBluetooth not available\u00bb, preventing any connection). In most cases, the problem is software-related and can be resolved in a few minutes.<\/p>\n\n<p>The most common causes: a corrupted Bluetooth preferences file (.plist) after a macOS update, too many devices paired simultaneously (the practical limit is 7), interference with Wi-Fi sharing the 2.4 GHz band, a conflict with a connected USB-C device, or a Bluetooth module that has gone into standby mode incorrectly. More rarely, the physical Bluetooth module (integrated into the motherboard on recent Macs) has failed.<\/p>\n\n<h2 id=\"redemarrer-bluetooth\">Restart Bluetooth properly<\/h2>\n\n<p>Before any advanced manipulation, try the basic solutions. They solve most cases on their own.<\/p>\n\n<h3>Step 1: deactivate then reactivate<\/h3>\n\n<ol>\n<li>Click on the Apple menu \u2192 <strong>System settings<\/strong>.<\/li>\n<li>Click on <strong>Bluetooth<\/strong> in the sidebar.<\/li>\n<li>Deactivate Bluetooth (switch at the top).<\/li>\n<li>Wait 10 seconds.<\/li>\n<li>Reactivate Bluetooth.<\/li>\n<li>Try a new connection with your device.<\/li>\n<\/ol>\n\n<h3>Step 2: Restart the Mac<\/h3>\n\n<p>If simply disabling it wasn't enough, restart the Mac completely (Apple menu \u2192 Restart). This will force a reset of all system services, including the Bluetooth controller. This simple procedure solves a large number of temporary problems.<\/p>\n\n<h3>Step 3: remove and then re-pair the device<\/h3>\n\n<ol>\n<li>System settings \u2192 Bluetooth.<\/li>\n<li>Hover over the problematic device \u2192 click on the <strong>i<\/strong> (info) \u2192 <strong>Forget this peripheral<\/strong>.<\/li>\n<li>Put your device in pairing mode.<\/li>\n<li>Repeat the pairing procedure from scratch.<\/li>\n<\/ol>\n\n<div class=\"info-box tip\">\n<strong>AirPods:<\/strong> if the problem only concerns your AirPods, consult our dedicated article <a href=\"\/en\/airpods-not-connecting-to-mac\/\">AirPods no longer connect to the Mac<\/a> which specifically covers the special features of these headphones (iCloud pairing mode, firmware updates, conflict with iPhone).\n<\/div>\n\n<h2 id=\"supprimer-plist\">Delete Bluetooth .plist files<\/h2>\n\n<p>The .plist files contain the Bluetooth preferences - the list of paired devices, their configurations and authorisations. When one of these files is corrupted (which happens quite often after a macOS update), the whole Bluetooth system can crash. The solution: delete them to force macOS to regenerate them properly.<\/p>\n\n<h3>Procedure<\/h3>\n\n<ol>\n<li>Open the <strong>Finder<\/strong>.<\/li>\n<li>Press the <strong>Cmd + Shift + G<\/strong> to open \u00abGo to folder\u00bb.<\/li>\n<li>Type : <code>\/Library\/Preferences\/<\/code> and press Enter.<\/li>\n<li>Search for the file <strong>com.apple.Bluetooth.plist<\/strong>.<\/li>\n<li>Delete it (move it to the trash).<\/li>\n<li>Also look for <strong>com.apple.Bluetooth.plist.lockfile<\/strong> if it exists and delete it.<\/li>\n<li>Check also in <code>~\/Library\/Preferences\/ByHost\/<\/code> - delete all files starting with <strong>com.apple.Bluetooth.<\/strong><\/li>\n<li>Restart your Mac.<\/li>\n<\/ol>\n\n<p>macOS will regenerate these files automatically on start-up. You'll need to re-pair all your Bluetooth devices - that's normal and that's the whole point.<\/p>\n\n<div class=\"info-box warning\">\n<strong>Please note:<\/strong> don't delete other files in the Preferences folder without knowing what you're doing. If you're not comfortable handling system files, back up your Mac with Time Machine first, or use our <a href=\"\/en\/free-mac-diagnostic\/\">free diagnostic service<\/a>.\n<\/div>\n\n<img decoding=\"async\" src=\"\/wp-content\/uploads\/2026\/04\/bluetooth-mac-plist-suppression-finder.webp\" alt=\"Deleting Bluetooth plist files via the Mac Finder\" title=\"How to delete corrupt Bluetooth preference files\" width=\"1200\" height=\"568\" loading=\"lazy\">\n\n<h2 id=\"reinitialiser-module\">Reset the Bluetooth module (Mac Intel)<\/h2>\n\n<p>On Intel Macs equipped with older versions of macOS, there used to be a hidden menu that allowed you to reset the Bluetooth module with one click. This option has disappeared on recent versions, but is still accessible via Terminal on certain configurations.<\/p>\n\n<h3>Hidden menu method (macOS Monterey and earlier)<\/h3>\n\n<ol>\n<li>Maintain <strong>Shift + Option<\/strong> and click on the Bluetooth icon in the menu bar.<\/li>\n<li>A debugging menu appears.<\/li>\n<li>Select <strong>Resetting the Bluetooth module<\/strong>.<\/li>\n<li>Confirm the operation.<\/li>\n<li>Restart the Mac and re-pair your peripherals.<\/li>\n<\/ol>\n\n<h3>Terminal method (all versions)<\/h3>\n\n<ol>\n<li>Open Terminal (Applications \u2192 Utilities \u2192 Terminal).<\/li>\n<li>Type : <code>sudo pkill bluetoothd<\/code><\/li>\n<li>Enter your administrator password.<\/li>\n<li>The Bluetooth service will restart automatically.<\/li>\n<li>Test your connections.<\/li>\n<\/ol>\n\n<p>On macOS Ventura and later, the hidden menu option is no longer available - the Terminal command is still the most reliable method.<\/p>\n\n<h2 id=\"nvram-smc\">NVRAM, SMC and Mac Apple Silicon<\/h2>\n\n<p>For persistent Bluetooth problems on Intel Macs, the NVRAM\/SMC reset can solve the problem by erasing hardware settings that may be corrupted.<\/p>\n\n<h3>NVRAM (Intel Mac)<\/h3>\n\n<p>Switch off the Mac. Turn it on by holding <strong>Cmd + Option + P + R<\/strong> for about 20 seconds (until the second start-up sound is heard). Release and allow to start normally.<\/p>\n\n<h3>SMC (Intel Mac)<\/h3>\n\n<p>On a MacBook with a non-removable battery: switch off, hold down <strong>Shift + Option + Ctrl + power button<\/strong> for 10 seconds, release, then switch on again.<\/p>\n\n<h3>Apple Silicon Mac (M1, M2, M3, M4)<\/h3>\n\n<p>On Apple Silicon Macs, neither NVRAM nor SMC are accessible - Apple has replaced them with system-integrated management. For persistent Bluetooth problems, boot into Safe Mode:<\/p>\n\n<ol>\n<li>Switch off the Mac completely.<\/li>\n<li>Hold down the power button until you see \u00abLoading start-up options\u00bb.<\/li>\n<li>Select your boot disk.<\/li>\n<li>Maintain <strong>Shift<\/strong> and click on <strong>Continue in safe mode<\/strong>.<\/li>\n<li>Connect and test Bluetooth.<\/li>\n<\/ol>\n\n<p>Safe mode clears some system caches and disables third-party extensions, which can resolve Bluetooth conflicts. If Bluetooth works in safe mode, restart normally and test again - often, simply switching to safe mode fixes the problem.<\/p>\n\n<h2 id=\"interferences\">Interference and connection limits<\/h2>\n\n<p>Bluetooth uses the 2.4 GHz band, which it shares with WiFi and many domestic devices. Interference is an underestimated cause of Bluetooth problems.<\/p>\n\n<h3>Common sources of interference<\/h3>\n\n<ul>\n<li><strong>Wifi 2.4 GHz :<\/strong> if your router transmits at 2.4 GHz, switch to the 5 GHz band to free up the Bluetooth band.<\/li>\n<li><strong>USB 3.0 peripherals :<\/strong> USB 3.0 ports and USB-C external hard drives generate electromagnetic interference which can disrupt Bluetooth. Keep them away from the Mac or use a shielded USB cable.<\/li>\n<li><strong>Microwave ovens :<\/strong> Yes, really. Microwaves emit in the 2.4 GHz band and can interrupt the Bluetooth connection while they are operating.<\/li>\n<li><strong>Metal walls and furniture :<\/strong> Bluetooth has a limited range (10 metres in theory, much less in practice). Metal obstacles greatly reduce the signal.<\/li>\n<li><strong>Too many devices paired :<\/strong> macOS theoretically supports 7 simultaneous Bluetooth devices, but in practice conflicts arise when there are more than 3-4 active devices.<\/li>\n<\/ul>\n\n<h3>Testing for interference<\/h3>\n\n<p>To confirm interference, move your Mac to another room, remove all USB devices and try the connection. If Bluetooth works in this neutral environment, you've got your culprit.<\/p>\n\n<h2 id=\"materiel\">When the Bluetooth module fails<\/h2>\n\n<p>On recent Macs, the Bluetooth module is integrated into the motherboard and cannot be replaced on its own. Hardware failure is rare but possible, usually after water damage, a fall, or a macOS update that has \u00abfried\u00bb the module's firmware.<\/p>\n\n<table class=\"tg-table\">\n<thead>\n<tr>\n<th>Symptom<\/th>\n<th>Probable cause<\/th>\n<th>Solution<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><span class=\"cell-label\">Bluetooth not in the System Report<\/span><\/td>\n<td><span class=\"cell-desc\">Module not detected by macOS<\/span><\/td>\n<td><span class=\"cell-desc\">Motherboard diagnostics required<\/span><\/td>\n<\/tr>\n<tr>\n<td><span class=\"cell-label\">Bluetooth not available after liquid damage<\/span><\/td>\n<td><span class=\"cell-desc\">Oxidation of the wifi\/Bluetooth module or cable<\/span><\/td>\n<td><span class=\"cell-desc\">Urgent deoxidation<\/span><\/td>\n<\/tr>\n<tr>\n<td><span class=\"cell-label\">Bluetooth AND wifi down simultaneously<\/span><\/td>\n<td><span class=\"cell-desc\">Faulty wifi\/BT combo card<\/span><\/td>\n<td><span class=\"cell-desc\">Replacing the card (on compatible models)<\/span><\/td>\n<\/tr>\n<tr>\n<td><span class=\"cell-label\">Very unstable connections, constant disconnections<\/span><\/td>\n<td><span class=\"cell-desc\">Bluetooth antenna disconnected or broken<\/span><\/td>\n<td><span class=\"cell-desc\">Reconnecting or replacing an antenna<\/span><\/td>\n<\/tr>\n<tr>\n<td><span class=\"cell-label\">Bluetooth out of order after macOS update<\/span><\/td>\n<td><span class=\"cell-desc\">Corrupted firmware (rare)<\/span><\/td>\n<td><span class=\"cell-desc\">Reinstalling macOS via Recovery mode<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n<h3>Check that the module is detected<\/h3>\n\n<ol>\n<li>Maintain <strong>Option<\/strong> and click on menu Apple \u2192 <strong>System information<\/strong>.<\/li>\n<li>In the sidebar, click on <strong>Bluetooth<\/strong> (under Materials).<\/li>\n<li>You should see the Bluetooth controller information (firmware version, MAC address, etc.).<\/li>\n<\/ol>\n\n<p>If the Bluetooth section is empty or displays \u00abNo information available\u00bb, this is a sure sign of a hardware problem. Our <a href=\"\/en\/free-mac-diagnostic\/\">free diagnosis<\/a> precisely identifies the component in question, and our <a href=\"\/en\/mac-logic-board-repair\/\">expertise in micro-welding<\/a> allows us to repair complex faults linked to the wifi\/Bluetooth controller. If the problem follows recent liquid damage, contact us urgently via our <a href=\"\/en\/mac-liquid-damage-repair\/\">liquid damage repair<\/a>.<\/p>\n\n<img decoding=\"async\" src=\"\/wp-content\/uploads\/2026\/04\/module-bluetooth-mac-diagnostic.webp\" alt=\"Diagnosis of the Mac Bluetooth module via the System Report\" title=\"Check the Bluetooth module in Mac System Information\" width=\"1200\" height=\"568\" loading=\"lazy\">\n\n<p>Apple offers its own resources on the <a href=\"https:\/\/support.apple.com\/fr-be\/guide\/mac-help\/blth1004\/mac\" rel=\"noopener\" target=\"_blank\">Bluetooth configuration on Mac<\/a>.<\/p>\n\n<h2 id=\"faq\">Frequently asked questions<\/h2>\n\n<div class=\"faq-section\">\n\n<div class=\"faq-item\">\n<div class=\"faq-question\"><span>Why does my Mac display \u00abBluetooth not available\u00bb?<\/span><span class=\"faq-toggle\">+<\/span><\/div>\n<div class=\"faq-answer\"><p>This message indicates that macOS cannot communicate with the Bluetooth controller. This may be due to a crashed system service (restart with <code>sudo pkill bluetoothd<\/code>), corrupt .plist files (delete and restart), or more rarely a hardware failure. Always restart your Mac before doing anything else.<\/p><\/div>\n<\/div>\n\n<div class=\"faq-item\">\n<div class=\"faq-question\"><span>How many Bluetooth devices can I connect to my Mac?<\/span><span class=\"faq-toggle\">+<\/span><\/div>\n<div class=\"faq-answer\"><p>Theoretically 7 simultaneous devices, but in practice the comfortable limit is 3 to 4 active devices. Beyond that, you'll run into problems with bandwidth, latency and unwanted disconnections. If you have a lot of devices paired up, delete the ones you no longer use.<\/p><\/div>\n<\/div>\n\n<div class=\"faq-item\">\n<div class=\"faq-question\"><span>Why do my Bluetooth devices disconnect frequently?<\/span><span class=\"faq-toggle\">+<\/span><\/div>\n<div class=\"faq-answer\"><p>Main causes: interference with a USB 3.0 or USB-C port (move USB peripherals further away), 2.4 GHz Wi-Fi interference (switch to 5 GHz), low Bluetooth device battery, too great a distance from the Mac, or too many devices paired simultaneously. Test by deleting unused devices.<\/p><\/div>\n<\/div>\n\n<div class=\"faq-item\">\n<div class=\"faq-question\"><span>My AirPods connect but the sound doesn't play, why?<\/span><span class=\"faq-toggle\">+<\/span><\/div>\n<div class=\"faq-answer\"><p>Check System Settings \u2192 Sound \u2192 Output: your AirPods should be selected. If they are, but the sound still comes through the internal speakers, delete the AirPods (Bluetooth \u2192 Forget) and pair them again. For details specific to AirPods, see our article <a href=\"\/en\/airpods-not-connecting-to-mac\/\">AirPods that don't connect to the Mac<\/a>.<\/p><\/div>\n<\/div>\n\n<div class=\"faq-item\">\n<div class=\"faq-question\"><span>How do I reset Bluetooth on an Apple Silicon Mac?<\/span><span class=\"faq-toggle\">+<\/span><\/div>\n<div class=\"faq-answer\"><p>On Apple Silicon Macs, there is no longer a hidden reset menu. Use the Terminal command <code>sudo pkill bluetoothd<\/code> which forces the Bluetooth service to be restarted. In addition, delete the Bluetooth .plist files in \/Library\/Preferences\/ and restart. Safe mode is also very effective.<\/p><\/div>\n<\/div>\n\n<div class=\"faq-item\">\n<div class=\"faq-question\"><span>Bluetooth doesn't work after a macOS update, what can I do?<\/span><span class=\"faq-toggle\">+<\/span><\/div>\n<div class=\"faq-answer\"><p>This is a classic problem. Solutions in order: restart the Mac, delete the Bluetooth .plist files, start up in safe mode then restart normally, wait for the next minor update (10.x.1) which generally corrects these regressions. If nothing works, restore the previous version of macOS from Time Machine.<\/p><\/div>\n<\/div>\n\n<div class=\"faq-item\">\n<div class=\"faq-question\"><span>Why are my Bluetooth keyboard and mouse no longer recognised on start-up?<\/span><span class=\"faq-toggle\">+<\/span><\/div>\n<div class=\"faq-answer\"><p>Bluetooth loads late when macOS starts, which may prevent you from using the keyboard\/mouse to enter the FileVault password. Workaround: temporarily connect a wired keyboard to log in, or enable auto unlock with your Apple Watch in System Settings \u2192 Security.<\/p><\/div>\n<\/div>\n\n<div class=\"faq-item\">\n<div class=\"faq-question\"><span>Bluetooth is deactivated and I can't reactivate it, why?<\/span><span class=\"faq-toggle\">+<\/span><\/div>\n<div class=\"faq-answer\"><p>A greyed-out Bluetooth switch usually indicates a hardware problem or corrupted firmware. Try the Terminal command first <code>sudo pkill bluetoothd<\/code>. If this doesn't work, delete the Bluetooth .plist files and restart. As a last resort, if the switch remains greyed out, it's probably the Bluetooth controller that's faulty - a technical diagnosis is required.<\/p><\/div>\n<\/div>\n\n<div class=\"faq-item\">\n<div class=\"faq-question\"><span>Can I replace the Bluetooth module on my Mac?<\/span><span class=\"faq-toggle\">+<\/span><\/div>\n<div class=\"faq-answer\"><p>On recent Silicon Apple Macs, the Bluetooth module is integrated into the SoC (System on a Chip) and cannot be replaced separately. On older Intel Macs (notably iMac and pre-2016 MacBook Pro), the wifi\/Bluetooth combo card is sometimes replaceable. A diagnostic is required to confirm feasibility based on your exact model.<\/p><\/div>\n<\/div>\n\n<div class=\"faq-item\">\n<div class=\"faq-question\"><span>Can MAC repair a Mac Bluetooth module?<\/span><span class=\"faq-toggle\">+<\/span><\/div>\n<div class=\"faq-answer\"><p>Yes, with over 15 years' experience since 2010, we diagnose Bluetooth faults: antenna reconnection, deoxidation after liquid damage, replacement of wifi\/Bluetooth combo card on compatible models, micro-soldering of the controller on the motherboard. 180-day guarantee. Take <a href=\"\/en\/book-appointment\/#form\">appointment<\/a> for a free diagnosis.<\/p><\/div>\n<\/div>\n\n<\/div>\n\n<div class=\"related-links\">\n<strong>Related articles<\/strong>\n<ul>\n<li><a href=\"\/en\/airpods-not-connecting-to-mac\/\">AirPods no longer connect to the Mac<\/a><\/li>\n<li><a href=\"\/en\/mac-wifi-not-working\/\">Mac Wifi no longer working<\/a><\/li>\n<li><a href=\"\/en\/mac-sound-not-working\/\">More sound on the Mac: 10 solutions<\/a><\/li>\n<li><a href=\"\/en\/mac-logic-board-repair\/\">Motherboard repair by micro-soldering<\/a><\/li>\n<\/ul>\n<\/div>\n\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Bluetooth Mac indisponible : 10 solutions pour retrouver la connexion Lecture : 11 min | Pannes et Solutions En r\u00e9sum\u00e9 : si le Bluetooth de votre Mac affiche \u00ab\u00a0Bluetooth non disponible\u00a0\u00bb ou refuse de s&rsquo;activer, red\u00e9marrez d&rsquo;abord le Mac. Si le probl\u00e8me persiste, supprimez les fichiers .plist Bluetooth, r\u00e9initialisez le module Bluetooth via le menu [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":5259,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_breakdance_hide_in_design_set":false,"_breakdance_tags":"","footnotes":""},"categories":[14],"tags":[391,388,24,390,392,128,373,389,89],"class_list":["post-5256","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-pannes-solutions","tag-airpods","tag-bluetooth","tag-depannage","tag-interferences","tag-magic-mouse","tag-mode-sans-echec","tag-nvram","tag-plist","tag-terminal"],"_links":{"self":[{"href":"https:\/\/reparationmac.be\/en\/wp-json\/wp\/v2\/posts\/5256","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/reparationmac.be\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/reparationmac.be\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/reparationmac.be\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/reparationmac.be\/en\/wp-json\/wp\/v2\/comments?post=5256"}],"version-history":[{"count":0,"href":"https:\/\/reparationmac.be\/en\/wp-json\/wp\/v2\/posts\/5256\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/reparationmac.be\/en\/wp-json\/wp\/v2\/media\/5259"}],"wp:attachment":[{"href":"https:\/\/reparationmac.be\/en\/wp-json\/wp\/v2\/media?parent=5256"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/reparationmac.be\/en\/wp-json\/wp\/v2\/categories?post=5256"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/reparationmac.be\/en\/wp-json\/wp\/v2\/tags?post=5256"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}