I have bluetooth headphones with microphone. I can connect them to my PC, but when I want to change the sound profile to HSP/HFP they stop working (mic doesn't work and I can only hear static). If I open youtube the video doesn't load. Any ideas on how I can fix this?


If it is a Broadcom chip this might help you:


# Bus 001 Device 003: ID 0a5c:21e6 Broadcom Corp. BCM20702 Bluetooth 4.0 [ThinkPad]

I could connect the headset before, but just like for you, as soon as I switched to HSP/HFP the mic and audio wouldn't work.

I tried some things. But I'm pretty sure this was the solving step: Found this link in another article somewhere.

I replaced my BCM firmware file with the one downloaded from plugable (link below). Make sure that you have a that chip first! And I'd recommend to do some backup of the original firmware files as well.

cd /lib/firmware/brcm
# backup original
cp BCM20702A<yourversion>.hcd xxxBCM20702A<yourversion>.hcd


Then I pretty much followed these instructions, point out that I had to use the name of my original driver. I first missed this and had something saying 'could not find' in

dmesg | grep -i blue

As soon as you replaced the files shut down your machine (not just reboot) and start it up again. Works for me now =) I'd love to here if this did the job.

  • Thank you for your answer, but I think I don't have this chip, because it doesn't show up when I type in lsubsb. – Gregor A. Jan 5 at 9:05

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