I'm trying to add a BlueParrott B-250XT+ bluetooth headset on a Thinkpad X230 tablet running Ubuntu 16.04 with its hardware bluetooth adapter.
The adapter works – meaning it detects/sees the headset. However, when connecting to the headset it initially connects, then this error pops up:
Connection Failed: blueman.bluez.errors.DBusFailedError: Protocol Not available
Afterwards, the Headset disconnects and future connections are impossible – this is some sort of failure/error that causes the bluetooth to be unresponsive afterwards.
I have Pulseaudio installed and I have bluetooth set to load after X11 (this is what got me this far – to the point I can connect). But, as mentioned, the device gets dumped shortly after connection.