I am having the same problem, basically, I have upgraded my 520 to 830 and paired my ut800 and 515 radar, then I saw an update for ut800 downloaded from the device, but then it's unable to restart the device or connect to it to finish the installation, I decided to remove the ut800 (sensor) and boom flashing green and blue, pressing and holding the light button doesn't do anything, well there's no way to reset the device even...this is so frustrating, wondering if I should just invest in a different headlight brand
So the forum is intended for user to get helped by peers
Yes.
or Garmin support folks should be helping also?
Garmin support folks help if you contact garmin support.