200 bluetooth stereo RESET

Anyone know how to 'reset to factory settings' the bluetooth MP3 stereo in the full fat 200's?

Mine is playing up and requires a lengthy trip to the dealers. Trying to avoid this by resetting or updating/flashing the firmware with a new/different version.

It's locking up when I try copying over new contacts to the system memory. Worked a few times before but then stopped working. Nothings changed with my phone or it's OS or settings etc.

Any guidance appreciated :smile: