Dear members,
my name is Ralf and I'am new in this forum (as member) since yesterday.
I drive my car in Berlin (Germany). 4 years ago I installed a AVIC F20BT. Since that time I arrange with it. All features work until two weeks ago. I had to change a headlight bulb and disconnect the battery of the car for nearly 2 hours. After reconnection of the battery the time of my f20bt was wrong. The time had an deviation to real time of 2 hours and 17 minutes.
I drove the car with a few days sometimes with and sometimes without navigation but the time was not corrected himself. So I performed mo
