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Why does the mobile phone flash? I just bought it.
1. 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 you don't need to check if they are not activated).
2. Shut down and restart the machine and observe.
3. 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.
4. If it is invalid, back up the data (contacts, text messages, pictures, etc. ) in the phone, and then restore the factory settings.
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 Samsung after-sales service center for professional engineers to help you test it.
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