I've just used a fresh image of Mate 20.10 and used -proposed and done a full update and reboot. My bluetooth mouse, headphones and external keyboard are working fine now with this build so this bug has been fixed for me.
Thank you all for your efforts in getting it sorted Kind regards Tony -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1903048 Title: [SRU] Bluetooth won't activate on the pi 400 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/bluez/+bug/1903048/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
