bluetooth hci0: firmware: failed to load brcm/BCM20702A1-0a5c-21e6.hcd

[inkbottle <inkbottle007@gmail.com>]

Dear all, (debian/sid)

Because I had this error in journalctl:
Mar 09 15:17:09 pluto kernel: Bluetooth: hci0: BCM20702A
Mar 09 15:17:09 pluto kernel: Bluetooth: hci0: BCM20702A1 (001.002.014) build 
0000
Mar 09 15:17:09 pluto kernel: bluetooth hci0: firmware: failed to load brcm/
BCM20702A1-0a5c-21e6.hcd (-2)
Mar 09 15:17:09 pluto kernel: bluetooth hci0: Direct firmware load for brcm/
BCM20702A1-0a5c-21e6.hcd failed with error -2
Mar 09 15:17:09 pluto kernel: Bluetooth: hci0: BCM: Patch brcm/
BCM20702A1-0a5c-21e6.hcd not found

And because my BT was working... But not so well...

And after taking advices on #debian-next...

(https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=831592)

I followed the instructions there:
https://github.com/winterheart/broadcom-bt-firmware

and simply copied the file:
BCM20702A1-0a5c-21e6.hcd
there:
/lib/firmware/brcm

=====

After that, and some reboot, I didn't have any bluetooth at all anymore:
The only thing BT in journalctl was:
May 30 17:18:03 pluto dbus[416]: [system] Failed to activate service 
'org.bluez': timed out

And no trace anymore of the mere string "BCM20702" (ignore case option...)

I did even thought that it had "burnt" my chipset

=====

So I removed the file BCM20702A1-0a5c-21e6.hcd altogether,

And rebooted,

And now I do have BT again;

Though minimalist and not working well...
(actually can't be used, broken; can be use 1 minute, with difficulties...)

=====

I would appreciate help to have that working.


Best,
Chris