About C4 Screen Display
05/03/2020
Q：I have two C4 and everything was fine when I started using them. But after a period of time, its screen shows such problems as the following figure. It can no longer work normally.
A：This may be the cause of the burn-out of the screen. You should connect the computer with a network cable and observe its status. If the main program is lost, it is likely that the main board is broken. You need to return to the factory for repair or click the link below to purchase a new PCB board.