Fixing Bluetooth on Fedora 35

After updating Fedora, I ended up with a dysfunctional bluetooth - (again?).
To avoid the same pain for everyone else - here's how to fix it.

The fix

The issue was caused by a missing patch, so first check if you're running into a similiar issue as I was by running

 dmesg | grep -i bluetooth
 

If you now see something like the following, that means you're covered!

 Bluetooth: hci1: BCM: Patch brcm/BCM20702A1-0b05-17cb.hcd not found
 

Head over towinterheart/broadcom-bt-firmware and pretty much just follow the instructions!
To be more specific:
- Find the file mentioned in dmesg in thebrcm folder in the repo mentioned above.
- Download it into/lib/firmware/brcm

 $ cd /lib/firmware/brcm
 $ sudo curl -o BCM20702A1-13d3-3411.hcd https://github.com/winterheart/broadcom-bt-firmware/raw/master/brcm/BCM20702A1-13d3-3411.hcd
 

- Reboot