I did the system update to the newest version with keeping the old maps f8. All went smooth.
Today I wanted to Update the maps to f9 and. First the System seemed to be downgraded because the look was different by time. Then it said I can pull out the usb stick, so I did it.
From that time on the display got black. Since then its dead and I cant do anything. I tried everything even disconnect the battery for 15 minutes.
The reset doesnt work. The usb plug gets blue shortly but the usb stick wont work anymore.