Why the phone screen does not display the screen?
It should be the motherboard and the display wiring problems bars, this depends on bad or bad, may be loose, plug can use.
Second, the motherboard problem, and if your phone is still under warranty, this non-human damage to the problem of repair is free, if the warranty period is generally less than 100 yuan.
First, the motherboard cable loose, can not light the screen.
You say the screen is all black or all white, but you can normally answer the phone or by their own memory by the use of mobile phone? There are two possibilities for this.
