Larkbook (december 2021) : after booting, the screen remains black

Larkbook Intel Celeron N4120, larkbQ256G21091445
The screen went black as I was working, and since then, it remains black when I boot.
What can I do?
Thanks

Did you try to connect it to another screen? to see if the computer still works?

Вы случайно не отключили его включить держим Fn и нажимаем F7

Same Problem with Larkbook.

I tried unplugging and reconnecting the cables: video signal, touchscreen signal and battery.

I cleaned the connectors, started the notebook without connections and I also tried to increase the display brightness with the working keys.

No way! The backlight is there but I imagine they are not visible on the screen.

The notebook works very well if connected via HDMI to a monitor.





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