i upgraded my F40BT eu version according the manual of pioneer.
The upgrade went so far ok. After the upgrade the Radio went off automatically but never came back.
When I turn on the power the radio stays dark. Nothing happened at all. The fuses are ok.
I already send the Radio to Pioneer service and repair. They said they need to replace a board because there is no software on the board anymore. This should cost 655â‚¬!!!!
I cannot believe that it is not possible to flash the board with a new software /boot loader.