What should I do if the screen of Apple's mobile phone suddenly fails?

1. Sometimes the screen failure of Apple's mobile phone is caused by too much dust on the screen. You can find a cloth to clean your glasses first and clean the screen of your Apple phone.

2. Some friends use the touch screen immediately after applying hand cream or when their hands are wet, which may also lead to screen failure, so try to keep their hands dry when using the mobile phone.

3. If you buy a junk plastic protective film or film, please remove it and replace it with a better quality mobile phone film.

4. If it is not caused by the above reasons, please try to turn off the device and turn it on again. Press and hold the Sleep/Wake button on the top of the device for a few seconds until a red slider appears, and then slide the slider. Then press and hold the Sleep/Wake button until the apple logo appears.

5. If the phone cannot be turned off, please wait for the phone to automatically turn off when there is no power, and then charge the phone to start the touch screen operation.

6. If there is no response, you can restart your phone and try it. Finally, it is determined that the hardware is damaged and can be sent for maintenance.

7. Sometimes an invalid touch screen is also related to your ios system. Please upgrade your ios system to the latest version. After upgrading to the latest version of iOS system, the touch screen function will be restored.

8, caused by voltage instability. Generally, when a finger touches the capacitive screen, it will "suck" away a little current, and then the screen will be evenly energized to the position where the thumb is located from four corners for positioning, so the capacitive screen will "drift" or even fail when the transmission voltage is unstable. In this case, please check how much power is left in your battery and charge it immediately when the power is lower than 20%.

9. Sometimes when you are not paying attention, your proximity to a place with strong electromagnetic field will make the capacitive screen invalid. Don't put the phone on the speaker or magnetic screw.

10, don't put your Apple phone near a hot place. When the temperature reaches about 40 degrees, it may lead to capacitive screen drift and touch screen failure.

If the above methods cannot be solved, please go to the customer's Apple Customer Service Center for maintenance inspection.