Chuwi Hi10 Plus sometimes doesn't switch on


my chuwi (serial LQ64G42170905xyz, bios version P1D6_C189B_Hi10_plus.237) sometimes doesn’t want to switch on.
Only blank/black screen appears at power button pressing, nothing happens.
After couple of trying randomly (long pressing of power button) it starts again but can’t continue from the previous state, it starts normal boot (choose android or win), but the system (bios) date and time is always forgotten (battery is new).
Any idea to fix it?


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Ok, I hope your problem can be solved soon. Have a good day