GUIDE How to Flash Broadcom Bluetooth Firmware

[nikvdnx]

I have similar issue with Dell DW1560 which is 4352+20702 M.2 ([0a5c:216f])
What DFU should I use to flash?

 

[EliteMacx86]

I have similar issue with Dell DW1560 which is 4352+20702 M.2 ([0a5c:216f])
What DFU should I use to flash?

This guide is not intended for PatchRAM USB Devices.

 

[AleksASKO]

Hello!
I'm going to try flash BCM943602CDP, I know that I should use 20703_8296.dfu, but I use Monterey and following the guide I should extract the firmware, but there is no information in the guide where from should I do this?

"However, since Monterey, Apple removed the IOBluetoothUSBDFU.kext and this kext no longer exist on Monterey and later. Therefore, you must extract the firmware before uploading. "

 

[EliteMacx86]

Hello!
I'm going to try flash BCM943602CDP, I know that I should use 20703_8296.dfu, but I use Monterey and following the guide I should extract the firmware, but there is no information in the guide where from should I do this?

"However, since Monterey, Apple removed the IOBluetoothUSBDFU.kext and this kext no longer exist on Monterey and later. Therefore, you must extract the firmware before uploading. "

Yes, the firmware can be obtained from the Big Sur.

 

[AleksASKO]

Is there any difference between Big Sur and Catalina? I have one mac with Catalina installed, can I extract dfu from there? Or it is better to upgrade to Big Sur?

 

[EliteMacx86]

Is there any difference between Big Sur and Catalina? I have one mac with Catalina installed, can I extract dfu from there? Or it is better to upgrade to Big Sur?

The firmware is only present on Big Sur.

 

[zhenya8987]

Hi! I managed to run it on Sequoia using your method, but after rebooting Bluetooth doesn't work again. However, if I flash the firmware again, it works again. What should I do?

 

[zhenya8987]

By the way, I have to additionally use the command sudo pkill bluetoothd , but it works perfectly in BIOS!

 

[zhenya8987]

 

[EliteMacx86]

Hi! I managed to run it on Sequoia using your method, but after rebooting Bluetooth doesn't work again. However, if I flash the firmware again, it works again. What should I do?

Attach complete PR files.