What should I do if my mobile phone doesn't work properly?

First, check whether the third-party software is newly downloaded and installed on the mobile phone. It may be that the software is not compatible with the mobile phone. Try to uninstall (Settings-More-Application Manager-Select Download-Uninstall).

Confirm background operation

Confirm whether the background is unresponsive because multiple applications are running at the same time.

Eliminate card problems

Take out the phone memory card and phone card, and restart the phone to see if the problem is still the same (eliminate the card problem).

Restore factory settings

If it doesn't return to normal, back up the mobile phone data (phone book, SMS, multimedia files, etc.). ) and restore the factory settings (Settings-Account-Reset-Restore the factory settings).

Upgraded version

Try again after upgrading your mobile phone.