@dos, I have on one of my L5:
purism@old-pureos:~$ uname -a
Linux pureos 6.12.0-1-librem5 #2 SMP PREEMPT 6.12.105pureos1~cri1 2026-08-26 01:00:32 UTC aarch64 GNU/Linux
root@pureos:/home/purism# bluetoothctl --version
bluetoothctl: 5.66
and a BT keyboard works fine on a Debian live system with a 6.12.94 kernel, see:
but does not show up or pairs on the Crimson (on an Byzantium it pairs, but keystrokes are not passed and errors are in /var/log/syslog).
Is there any hope that it will work in Crimson with the 6.18 kernel? I have it to return to the seller on September 19 latest.
Thanks