Everything done, but the menu of the update programme and most of the messages remain unreadable.
The text file in the folder is also indecipherable.
And so I could beat myself up at the moment...
Earlier the LCR was alive again, something I did made the flashing take 347 seconds and the device started itself.
But it showed the old firmware and so I started again....
....And I have a dark screen again.....
If I can somehow fix it, I'll leave it like this, no matter how great the new firmware is.