Mobile phones sometimes go blank when they receive messages or incoming calls. What happened?

That must be a cell phone problem. White screen may be cable damage. If you turn it off and then on, the problem will be solved. Software problems should be divided into different situations. 1. Under what circumstances does your mobile phone have a white screen? A, a few minutes after starting the machine. Then you have to rewrite the software. Go to the maintenance desk or the manufacturer for repair. ) b, the screen will be blank when you turn it on. 80% of the cables are broken. Go to the maintenance desk for maintenance a year later. 2. How blank is your machine? A, sometimes it is white, sometimes it is not. There are two possibilities: bad wires or software problems. ) B. After the phone is turned on, shake the flip of the phone slightly, and then it will be white again. (change the line. C. It's always white. (80% of cables need to be replaced. D. Don't move after the phone is turned on. It will soon be white. Yes, the transmission cable needs to be replaced. No (that is, it has not been repaired). So how long have you bought the machine? You may return to the factory warranty within a year. After more than one year, you must upgrade or replace the cable. Black screen is generally caused by MCE problem of short message, memory damage, system error, media being closed, installing or deleting games, running games (CS, DOOM) and other reasons.