What should I do if the mobile phone screen flashes?

If the mobile phone screen flashes, it is recommended that you

Check the Display Update function.

Check whether the "Display Update" function in the developer options is turned on: Settings-Developer Options-Display Update-Off (some machine developer options are hidden, so if they are not activated, there is no need to check).

Restart the phone

Observe after shutting down and restarting the machine.

Upgrade system

If the mobile phone can be used normally, it is recommended to check whether there is a new version of the machine system and try to upgrade the system.

Restore factory settings

If it is invalid, back up data (contacts, text messages, pictures, etc. ) in the phone, and then restore the factory settings.

Contact the after-sales service center

If the mobile phone can't work normally or the problem still exists after the above operations, it is recommended that you take the purchase invoice, maintenance card and machine to the local after-sales service center for professional engineers to help you test it.