Monterey - Bluetooth BCM_4350C2

[asmar]

Hi all,

I'm trying to make this bluetooth usb to work without any luck.

Here are what system reports:

Bluetooth Controller:
  Address:    NULL
  State:    Off
  Chipset:    BCM_4350C2
  Discoverable:    Off
  Firmware Version:    v0 c0
  Product ID:    0x0001
  Supported Devices:    0x382039 < HFP AVRCP A2DP HID Braille AACP GATT Serial >
  Transport:    USB
  Vendor ID:    0x004C (Apple)

Attached is a screenshot of my kext files.

Any help is more than welcome.

Screenshot 2022-08-11 at 1.52.08 PM.zip

[MaLd0n]

https://github.com/acidanthera/BrcmPatchRAM

[asmar]

I followed that link and its details without any luck. If you see my screenshot you will see the relevant keys that are already there.

[MaLd0n]

save one Ioreg
https://olarila.com/files/Utils/IORegistryExplorer.app.zip

[asmar]

Thank you @MaLd0n, you can download the file from this link.

[MaLd0n]

i dont see broadcom bt in ioreg

need check if u kill this usb port on remap. header mobo for bt is connected?

 

[asmar]

I'm not sure I understand what you want to say. Are you asking if the bluetooth is connected in USB? If yes, it is.

Can you give me a few more details or a link to check what you are saying about usb remap?

[MaLd0n]

remove remap usb ports and test

[asmar]

I tried without any success. Maybe I'm doing something wrong but I have no clue how to troubleshoot this.

I followed the following:

https://github.com/corpnewt/USBMap

everything works apart from bluetooth.

[MaLd0n]

post ur efi folder here

remove ur serials

[cruz97808]

Hello There,

 

So I have the same issue that @asmar has I went ahead and ran the IOReg and I found that my Bluetooth device was recognized. Here some pictures and an export of what my system has. I hope you can help me out with this issue.

Archive.zip

Edited November 12, 2022 by cruz97808

[webguynz]

I have same issue. 

I have tried using BrcmPatchRAM-2.6.4 series of kexts but nothing works. Bluetooth still not active.

I have attached zip file with IO reg. 

 

Also here is a link to my EFI folder. EFI

 

Any help much appreciated.

IO REG.zip

Edited March 22, 2023 by webguynz
adding link

[MaLd0n]

https://www.transfernow.net/dl/20230324zoAbPwr6

[Giuseppe Motta]

i have the same problem after upgrading to monterey 12.6.5 the bluethoot doesn't work, i followed the guide for the fix but nothing solved.

I put the link to download my EFI folder created by this forum by donation

https://we.tl/t-cN0mXSxq29Controller Bluetooth:
  Indirizzo: NULL
  Stato: Non attivo
  Chipset: BCM_4350C2
  Visibile: Non attivo
  Versione firmware: v0 c0
  ID prodotto: 0x0001
  Dispositivi supportati: 0x382039 < HFP AVRCP A2DP HID Braille AACP GATT Serial >
  Collegamento: UART
  ID produttore: 0x004C (Apple)

Edited June 11, 2023 by Giuseppe Motta