After replacing the battery of my F3210BT I get the message ''System starting up ... please wait'. 

The radio is still working but the screen is black, apart from the message that the system is starting up. After about half an hour the screen becomes completely black and the radio stops.

Resetting the system by means of pushing the reset button has no effect. I contacted Pioneer who advised me to send the unit to a repair center, they didn't came up with an solution to solve the problem.

Does any of you how to solve this problem? 

By the way, I also installed the old battery again, to see if the problem was caused by the new battery, but the problem was still the same.