Hi guys,
I've just received my 92 400E back from repairs today.

The battery was disconnected while the repairs were done, and the radio was flashing the usual "code" on the display.

When I entered the code (I have done this before) instead of the radio turning back on, the screen went blank, and then "E 2" appeared on the display.

The radio then turns itself off after 1 min. I tried to turn it off and back on again, but the same "E 2" code pops up, and then turns the radio back off.

HELP!!!

Thanks,

Ryan