10-09-2021, 07:00 PM
Thanks Kent,
Doing what you suggested (trust xx:xx:xx:xx:xx) worked a couple of times but was fairly flaky after a restart.
I think this is possibly quite a low-level problem with pi4's bluetooth controller as discussed in this thread:
https://forums.raspberrypi.com/viewtopic.php?t=306920
Certainly it appears for me that after startup, I can't connect. If I do a further "systemctl restart bluetooth", the Controller MAC address changes ("sudo bluetoothctl" then "show"), then I can connect from the phone again.
I haven't had time to properly digest the raspberrypi thread (and possible fixes therein) yet but thought I'd post here in case anyone else wants a look.
Cheers again for the help
Doing what you suggested (trust xx:xx:xx:xx:xx) worked a couple of times but was fairly flaky after a restart.
I think this is possibly quite a low-level problem with pi4's bluetooth controller as discussed in this thread:
https://forums.raspberrypi.com/viewtopic.php?t=306920
Certainly it appears for me that after startup, I can't connect. If I do a further "systemctl restart bluetooth", the Controller MAC address changes ("sudo bluetoothctl" then "show"), then I can connect from the phone again.
I haven't had time to properly digest the raspberrypi thread (and possible fixes therein) yet but thought I'd post here in case anyone else wants a look.
Cheers again for the help
