YI 4k + won't turn on with the screen connected

Kreuas

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Poland
Hello
my camera wouldn't turn on, it's under warranty so I decided to fix it. I pulled off the front panel and disconnected the screen and the camera started working. There is a preview on the phone and records.Unfortunately, after connecting the screen again does not work, works only with the screen disconnected. When I connect the screen when the camera is working, the screen lights up but nothing displays. Is there a chance for me to fix it?
 
I have the same problem and looking for a fix..
I think our devices are bricked in some way.
Is there any chance to force a firmware update without the required touch input to start the process?

My device generates a dsp.log and a vin.log when starting with connected LCD, but doesn't respond to any button input then.
Without the LCD connected it respond to button input with a beep, but doesn't generate any log files on SD.
I can provide the dsp.log if it helps anyone here to get a solution to fix.
 
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