Vito's mobile phone has a black screen, but it is connected. What should I do?

1, the black screen of mobile phone is one of the common faults in mobile phone maintenance. Generally, black screens can be divided into two types:

One is the black screen being used,

One is standby black screen. The following are some basic reasons and solutions for the black screen.

2. In use, the black screen is mostly caused by the third-party software downloaded by yourself, which is rare in this machine. It can also be subdivided into two types:

One is that there is something wrong with the software itself, the software itself is unstable, or it doesn't match the mobile phone system, so it is easy to solve it, just uninstall it;

The second is the conflict between software, which is a bit troublesome to solve. It needs a software to install and uninstall it. If found, uninstall it, and the problem is basically solved.

3, standby black screen, let's talk about the standby principle, because most of the straight board machines have power-saving circuit design: the phone will automatically turn off the screen if it can't detect the button trigger signal for a long time, that is, standby. When you need to use the phone, a button will activate the power-saving circuit, and then the screen will light up.

4. The reason of black screen is often reflected by the delay of screen trigger circuit. That is to say, the mobile phone system has issued an instruction to light up the screen, but due to the delay of the circuit, the screen has not been successfully lit up, but the mobile phone system thinks it has been lit up, thus causing a black screen.