Chuwi engineer are solving the black screen issue for Hi10 plus. But they need more informations.
Can you tell me the serial number of tablet if your tablet has black screen issue？
Then follow the operation below:
Win+R - Regedit - HKEY_LOCAL_MACHINE->SYSTEM->CurrentContro1Set->GraphicsDrivers->> DisableOverlays
To see if there is option DisableOverlays, if so, tablet will work normally after restarting. If not, you need to reinstall system.
Please give me some feedbacks, thanks.