Slimming the mobile phone is mainly to clean up all the software and files stored in the mobile phone, which will not lead to the normal operation of the system or software.

Unless you uninstall and clean the camera software and audio files.

If it's just a software problem, you can download it again through the software management of Tencent Mobile Manager.

If it is not a software problem, try to restore the factory settings, or brush the system through Tencent mobile phone housekeeper.

Open Tencent mobile phone manager-advanced tools-application treasure-click on the briefcase at the top right-connect to the computer.