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BluetoothIconX.jpg
Bluetooth is what your Mac uses to connect to wireless devices like keyboards, mice, trackpads, speakers, and other peripherals. Generally, it's a reliable technology. At some point however, the chances are you'll run into difficulty establishing a Bluetooth connection with one or more of your devices.

Most problems can be fixed by unpairing and repairing the Bluetooth device, changing its batteries, rebooting your Mac, or performing an SMC reset. But if none of these methods work, you can always try resetting your Mac's Bluetooth module. Here's how to do it in macOS using the hidden Bluetooth Debug menu.

How to Reset Your Mac's Bluetooth Module

Before proceeding, bear in mind that if your setup relies exclusively on Bluetooth for communicating with your keyboard and mouse, then you're going to temporarily lose connection to them using the following methods, so you might want to have a backup wired input device option just in case.
  1. Holding the Shift + Option (Alt) keys on your Mac's keyboard, click the Bluetooth symbol in the top-right corner of the macOS menu bar. (If you don't see it there, you need to check Show Bluetooth in menu bar in System Preferences -> Bluetooth.)
    macos-bluetooth-debug-menu-bar-800x530.jpg

    Locate the revealed Debug submenu and hover your mouse cursor over it.
    Click Reset the Bluetooth module.
    macos-reset-Bluetooth-module-800x226.jpg

    Now, restart your Mac.
You'll notice a couple of other potentially useful options in the Debug submenu. Factory reset all connected Apple devices does exactly what it says - forces any Apple-branded Bluetooth accessories back to the default settings they came with out of the box. It's a reliable fallback option if you've tried everything else to fix a connection issue, including resetting the Bluetooth module.

Lastly, the Remove all devices option might prove useful if you're moving your Bluetooth mouse and keyboard to another Mac, for example. However, you can also remove devices on an individual basis from the macOS menu bar, as long as you hold down Shift + Option (Alt) before you click the Bluetooth symbol.

remove-Bluetooth-device-macOS-800x529.jpg

Removing devices in this manner means you're not also banishing a whole bunch of other established Bluetooth connections like speakers and so on that you might want to keep.

Article Link: How to Reset Your Mac's Bluetooth Module to Fix Connection Issues
 

Nimrad

macrumors 6502
Jul 28, 2010
367
1,197
I find Bluetooth frustrating with my iPhone. My headset never auto-connects and I have to manually do it in settings. We should've come further than this.
 
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zoemacuser

macrumors regular
Feb 21, 2010
119
5
Southern Plains, USA
I find Bluetooth frustrating with my iPhone. My headset never auto-connects and I have to manually do it in settings. We should've come further than this.

No kidding. I was going to ask how to do this in iOS. Ever since iOS 11 (or maybe my iPhone X) Bluetooth has been amazingly buggy. I’ve had conversations with Apple which usually end in reloading the iPhone or the need for a new iPhone, but the problems persist.
 
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k.alexander

macrumors 6502
Jul 14, 2010
461
215
I've had terrible problems with using Bluetooth headphones (Airpods and others) with my AppleTV 4K. Every few minutes I get intermittent dropouts in audio, they last a total of about 3-10 seconds during which time I can hear every other syllable or word of the movie/show I'm watching.

Searched all over without a solution. Does anyone have any recommendations.

This started around Nov. 2017. Tried unpairing/repairing headphones, different settings on my router, even ran ATV4k tethered to my phone, thus eliminating the router, nothing helps. Sometimes it happens every 30-60 seconds or so, sometimes it's every 5-10min.
 

lionel77

macrumors newbie
Sep 15, 2006
13
96
If resetting Bluetooth does not fix your issues, switching Bluetooth to Hybrid mode might:
https://gist.github.com/xbeta/e60fddd012e95202bbbe

After I had upgraded my MacBook Pro to Sierra, Bluetooth connections to my iPhone became so flaky that I could no longer reliably use MacID to log into my Mac using my iPhone's TouchID. I tried a lot of different things unsuccessfully, including resetting Bluetooth, but what did fix my Bluetooth issues was switching to Hybrid mode als described in the link above.
 

KBeat

macrumors newbie
Sep 20, 2007
12
9
I find Bluetooth frustrating with my iPhone. My headset never auto-connects and I have to manually do it in settings. We should've come further than this.

Apple agreed with you and designed the W1 chip. W1 enabled devices eliminate all the connection headaches associated with Bluetooth. It's part of the charm of the AirPods. We can only hope Apple with license it to car manufacturers and the like.

FWIW, I will say I've had much better luck with newer, 4/4.1 enabled bluetooth devices than I've had in the past. My 2009 MDX doesn't have bluetooth audio, so I'd been using this MPOW thing that constantly had connection issues. A month ago I picked up a newer device from them with the latest bluetooth tech, and it connects flawlessly, every time, without issue.
 

sdf

macrumors 6502a
Jan 29, 2004
691
837
I've had terrible problems with using Bluetooth headphones (Airpods and others) with my AppleTV 4K. Every few minutes I get intermittent dropouts in audio, they last a total of about 3-10 seconds during which time I can hear every other syllable or word of the movie/show I'm watching.

I've never experienced this. I think your AppleTV is haunted. :) Or possibly there's a lot of radio interference there. You should see if you can get them to swap it.
 

JaxJM

macrumors newbie
Aug 11, 2019
1
0
I was experiencing very frustrating Bluetooth connection issues with the wireless keyboard and mouse that came with the new iMac I purchased in April of 2019. It was so unpredictable that I left the old wired USB keyboard plugged in alongside the new one, along with a wireless dongle mouse, so that I could reset the module every time it happened, which was multiple times daily. Then, about a week ago (August 2019) Apple issued a software update for OS X Mojave, which fixed issues with Macs waking from sleep mode - and - VOILA! - I have not had the issue since. The USB keyboard and dongled wireless mouse are now in storage - and the newer wireless accessories work consistently. Glad this wasn't in my head, and is finally fixed.
 

Kerry Lutz

macrumors newbie
May 16, 2020
1
0
I have been having issues with my BT mouse and keyboard. I use a Logitech mouse because I like having two buttons. I tried everything but nothing worked until this. It’s now working perfectly. Thanks!
 

GeekPandaCH

macrumors newbie
Jun 3, 2020
8
4
This is a great tip. Was trying almost everything to fix the bluetooth issues with all devices I had from a Mac Mini, the reset solved everything. Thanks!
 

varen

macrumors newbie
Oct 19, 2021
4
1
Hi. I don’t know why but I can’t see Debug after I press Shift + Option + Bluetooth Icon. I’ve tried different things but don’t show up, anyone have an idea ? Thanks
Are you on Big Sur or Monterey? I just upgraded to Catalina to Monterey and I can confirm that Shift+Option+Click Bluetooth no longer reveals the Debug menu. You still get the extra details that Option+Click gets you, but Shift+Option+Click no longer shows anything extra.

You might be able to get an older copy of Xcode Additional Tools, like 11.4 where they still included a the Bluetooth Explorer, and then use Bluetooth Explorer's "Modify Software Configuration" or "Controller Options" menu to reset the bluetooth module. Here's some screenshots:

1651863462560.png

1651863472610.png

But Bluetooth Explorer was made before Big Sur was released, so no idea if it'll still work. I haven't tried. Good luck!
 
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