I did a clean install and restored my home directory from a backup, after the first attempt at upgrading from 17.04 completely trashed my system.
Now my Plantronics headphones that worked perfectly on 17.04 aren't detected. If I go to Settings -> Bluetooth it shows a few other nearby devices but the headphones never appear and the spinner just spins forever.
Best Answer
I've had a similar thing with my Sony, then I realised I needed to "re-pair". Have you tried this : To put your headset in pair mode, press and hold the power switch towards the Bluetooth icon until you hear "pairing" and the headset LEDs flash red and blue. Release the button and set the headset aside. Activate Bluetooth on your computer and set it to search for new devices. If prompted for a passkey, enter 0000 (four zeros).