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Ubuntu 20.04 Bluetooth not working Resolved

Posted on January 22, 2021April 24, 2023

Bluetooth not working in ubuntu after update

If you have been using Linux for a while, you would know Bluetooth and Linux don’t go well. Whatever may be the reason, it’s always face problem when you update Linux versions. Recently, since my upgrade to Ubuntu 20.04, I have come to notice that Bluetooth devices stop working. I check my system not able to found Bluetooth adapter. I dug on it a lot and tried so many software and method to debug the issue I’m listing down one worked for me:

dmesg | grep -i bluetooth # Shows all Bluetooth driver info
dmesg | grep -i bluetooth | grep -i firmware # Shows Bluetooth firmware issues

In last command you can see this issue in firmware. As it says, you need brcm/BCM20702A1-0b05-17cb.hcd firmware.

Download this git repository and find file in to the ubuntu download folder BCM20702A1-0b05-17cb.hcd

Replace .hcd file to /lib/firmware/brcm and reboot your computer.

sudo cp BCM20702A1-0b05-17cb.hcd /lib/firmware/brcm/

That all after reboot you will find working Bluetooth.

Please check for more details https://github.com/winterheart/broadcom-bt-firmware

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