GUIDE How to Fix Bluetooth on macOS Monterey and Later

[GrantMBP]

Where did you attached them?

Uploaded them to Google Drive

 

[GrantMBP]

Is there a file size limit on attachments?

 

[EliteMacx86]

Uploaded them to Google Drive

Your configuration is not as per the guide.

Try to enable ExtendBTFeatureFlags and then check. Make sure to reset NVRAM twice.

Also, ensure that your kexts and OpenCore are upto date.

 

[EliteMacx86]

Is there a file size limit on attachments?

Yes, there is.

 

[GrantMBP]

Your configuration is not as per the guide.

Try to enable ExtendBTFeatureFlags and then check. Make sure to reset NVRAM twice.

Also, ensure that your kexts and OpenCore are upto date.

Will do

 

[GrantMBP]

Your configuration is not as per the guide.

Try to enable ExtendBTFeatureFlags and then check. Make sure to reset NVRAM twice.

Also, ensure that your kexts and OpenCore are upto date.

 

[EliteMacx86]

ExtendBTFeatureFlags is turned on in OC, all kexts have been updated, and two NVRAM resets haven't solved the issue.

Clear the .plist files from Library/Preferences/SystemConfiguration and then check. It seems like the BT address could not be found.

 

[GrantMBP]

Fixed it by adding the boot argument -btlfxallowanyaddr as mentioned on acidanthera/BrcmPatchRAM repo. Thank you!

 

[EliteMacx86]

Great. Will update the guide accordingly

 

[nephh]

Hi,

Thanks for all the explanations. However, I still have problems with Bluetooth on Monterey... Either the Bluetooth disconnects frequently, or the "bluetoothd" process starts running at full speed to use 400% of the processor and it crashes the Bluetooth.



My specs :

• Motherboard : ASRock Z490 Phantom Gaming-ITX/TB3
• CPU : Intel Core i9-10850K
• GPU : AMD Radeon RX 6600
• Network card : BCM94360NG
• macOS version : 12.6 (21G115)
• OpenCore version : 0.8.8

The network card (BCM94360NG) is in the M.2 key E port on the motherboard. WiFi works perfectly. Bluetooth is well mapped by USBMap.kext (HS14 = internal 255). I added -btlfxallowanyaddr flag on startup and the BlueToolFixup kext but my problems persist.

What is the problem? How to access the Bluetooth logs (and see what's wrong)? My EFI, IOreg folder and my PCIe Report are here: https://drive.google.com/file/d/1toCSCuw4Gs0972dt6EBHnb6eiFJCfhzL/view?usp=share_link


Thanks for your help