What is the scratch on the screen of mobile phone?

1, insufficient memory, the phone is stuck.

This is the most common cause of virtual key failure. When there is a problem, you can solve it by booting and restarting. Of course, you should also clean the memory of your mobile phone regularly, just in case.

2, software and system conflict

Just like physical buttons, when the software running inside the mobile phone conflicts with the system, the virtual buttons will also fail. So be careful when downloading software, and don't download it casually.

3, mobile phone film

Most people will stick protective films on their mobile phones, but it is worth noting that these films will also make the buttons of mobile phones insensitive.

If you have the habit of sticking film, you might as well tear off the mobile phone film and try it.

4. Hardware damage

Whether it is a virtual button or a physical button, if there is a problem with the mobile phone itself, it must be repaired by professional means. Before maintenance, it is best to back up your mobile phone.

Extended data:

Common troubleshooting of mobile phones:

Fault phenomenon: the mobile phone often jumps.

First, the reason why the mobile phone jumped.

1. When charging, the voltage is unstable or an unofficial/cottage charger is used to charge the mobile phone.

2. Hardware problem: the mobile phone is a refurbished machine or uses an inferior screen.

3. System problem: The firmware version of the system does not match the mobile phone.

4, inferior mobile phone film is easy to generate static electricity, which will increase the probability of capacitor screen failure.

Second, the solution

1. Try to avoid charging equipment in an environment with unstable voltage, such as on a high-speed train running at high speed. Because some high-speed rail circuits need the inverter to change the voltage, the high-frequency pulse (high-frequency noise/high-order harmonic) generated by the inverter will directly interfere with the internal circuit system of the mobile phone through the charging line, which is easy to cause screen jumping. If you need to use the power supply on the high-speed rail to charge the mobile phone, it is recommended to use a data cable with a magnetic ring.

In addition, do not use the cottage charger and data cable to charge the equipment, so as not to cause more damage to the equipment. Once the screen jumps during charging, please unplug the power in time.

2. Send the equipment with screen jumping problem to a professional maintenance point for testing. If it is confirmed that it is caused by hardware quality problems such as the screen, you should consider replacing the screen or machine.