Just buy a phone how to always appear black screen slow response how to do?
As for the standby black screen, straight machine because most have a power-saving circuit design.
The cause of the black screen is often the screen trigger circuit delay reflected. That is to say the phone system has been issued to light up the screen instructions but because the circuit did not send a successful result of the screen did not light the success of the success of the phone system that has been lit, So it caused a black screen.
The machine can not detect the button automatically turn off the screen, that is, standby, when you need to use the phone a button will activate the power-saving circuit, and then the screen lit!
The use of black screen is mostly downloaded by their own third-party software caused by the machine comes with little of this will happen.
Black screen mobile phone is often easy to encounter one of the failures, usually black screen can be divided into two kinds: one is to use the black screen, one is the standby black screen.
