What is the flash screen of Apple's mobile phone?

Apple's mobile phone screen flashes in the following ways:

1, battery power is insufficient.

2. There is something wrong with the screen.

3, system problems, it is best to brush the machine again, and then do the system (in this case, it is useless to restore settings, restore all settings, for GPS navigation, as well as network information, the keyboard flashes.

It is more useful to return this piece.

Repair the mobile phone or go to the regular after-sales center to ensure that it is not recommended to disassemble the machine blindly without knowing it, so as not to cause damage to the mobile phone. You can go to the store for inspection and maintenance if it is convenient.

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