Hi
I also have a XR6T LP, had a couple of little problems. Try disconnecting the battery waiting a few minutes and the reconnecting.
The old turn off and turn on.
Good luck
Regards
Lance
Hello,
My SatNav froze with a black scream, I disconnected the battery (only the negative terminal) and reconnected it after waiting just 1 minute. The SatNav is now working perfectly again.
Regards
Lance