Second, it is also possible that the screen of the mobile phone is broken. The specific solutions are as follows:
2. When the screen fails, it is recommended to press the volume up and down buttons and the power button on the mobile phone at the same time, turn off the mobile phone and then restart it.
4. If the above shutdown methods are useless, you can press the power button to force shutdown; Usually, after shutdown and restart, the problem of screen failure will disappear;
5. For screen failure caused by system failure or incompatibility, you can reset the phone after setting-General-Restore-Erase all contents and settings (please be careful if there are risks).
6. It is recommended not to restore, try to update the system, and see if the screen fault is restored after a period of use;
7. Finally, if the phone is dropped and there is something wrong with the hardware, you can only contact Apple for after-sales inspection and maintenance.