1, memory problem

Under normal circumstances, when there are too many things stored in the mobile phone, it will not only greatly slow down the speed of the mobile phone, but also make the screen blank when running the program, and then automatically quit the program. Especially the old model, the memory is relatively small, and it can't drive large-capacity memory software. When 80% of your phone's memory is occupied, there may be a crash or a black screen.

Solution:

A) Press and hold the home button of the mobile phone to bring up the recently run program, and slide to exit.

B) Clean up the garbage in the system administrator.

C) Click the prompt box on the desktop, and then click one key to clean the background software, or click Exit one by one.

D) Download the mobile phone management software and clean it with one click.

E) The best way is to get into the good habit of quitting the program without using it; Look at the configuration of the mobile phone and download some suitable software; Uninstall some uncommon software.

2. Poor contact

This problem includes two aspects: (1) The screen of the mobile phone is loose, which is difficult to find and needs repeated tests to determine. This situation is generally that the mobile phone falls and the cable is loose. (2) The mobile phone is wet, which leads to black screen and short circuit. In fact, the moistureproof of mobile phones does not necessarily mean that mobile phones are flooded. They are used in humid environments such as bathrooms and saunas. Hands often sweat or touch water, use mobile phones, etc. And the phone may be wet, which may cause water to stick to the motherboard or even mildew.

Solution: a) After telephone sales, replace the accessories. B) Pay attention to maintenance during use.

3. Software conflict

There are many softwares suitable for Android phones on the market, including a natural conflict software. This is usually a black screen when running the program, and then directly quit the program, or even the phone automatically restarts.

Solution: a) Uninstall the software and find a replacement software. Of course, this problem has existed for a long time, and it is difficult to find conflicting software. You can save the data, restore the factory settings, and then download the relevant software again for analysis.

4. Battery problems

The battery life is too long, or the battery life is shortened due to overcharge. Resulting in a black screen or reboot. This happens when the battery of the mobile phone is in poor contact with the battery connector.

Solution: a) Replace the original battery after sale. B) Wipe the connection gently with alcohol or eraser (the connection part on the battery can be an eraser, so it is recommended to wipe the battery connector on the mobile phone with alcohol) to see if the problem can be solved.