<< Solved >> Sonoma: Motherboard AX211 only works on 2.4GHz

[CaseySJ]

@Stork,

Let's try downloading the latest Intel Bluetooth kexts from here:

Releases · OpenIntelWireless/IntelBluetoothFirmware

Intel Bluetooth Kernel Extensions for macOS. Contribute to OpenIntelWireless/IntelBluetoothFirmware development by creating an account on GitHub.

github.com

Then copy these two files into EFI/OC/Kexts and reboot:

 

[CaseySJ]

Let's also install latest BlueToolFixup.kext from here:

Releases · acidanthera/BrcmPatchRAM

Contribute to acidanthera/BrcmPatchRAM development by creating an account on GitHub.

github.com

 

[Stork]

At this moment in time I would recommend the following:

1. Disable all the SSDT-UIAC tables in your ACPI folder.
2. Enable XhciPortLimit quirk in your config.plist.
3. Reboot and use the ResetNvramEntry.efi driver to wipe the old NVRAM settings.
4. Boot in to macOS and see if the Bluetooth shows and works.

This is assuming you are using OpenCore 0.9.4 or newer.

Yes, running OC 0.9.6.

5GHz didn't work. I can connect but it doesn't get Ethernet connection - Internet or local net.

 

[Stork]

@Stork,

Let's try downloading the latest Intel Bluetooth kexts from here:

Releases · OpenIntelWireless/IntelBluetoothFirmware

Intel Bluetooth Kernel Extensions for macOS. Contribute to OpenIntelWireless/IntelBluetoothFirmware development by creating an account on GitHub.

github.com

View attachment 575264
Then copy these two files into EFI/OC/Kexts and reboot:

View attachment 575265

Let's also install latest BlueToolFixup.kext from here:

Releases · acidanthera/BrcmPatchRAM

Contribute to acidanthera/BrcmPatchRAM development by creating an account on GitHub.

github.com

View attachment 575268

Woot! I now have BT. Thank you, thank you. @CaseySJ.

 

[Stork]

Wahoo! I now have 5GHz WiFi working now, too. OMG!

Thank you guys! @Edhawk, @CaseySJ, and everybody else whose contributions made my system work. Thank you, thank you!