How to restore the factory settings of vivos 1

This is the introduction of restoring factory settings or double clearing:

Restore all settings: restore all settings in the mobile phone to the factory state, such as alarm clock, wallpaper, network settings, ringtones, etc. However, the data or media in the phone will not be deleted.

Clear all data: All data on the mobile phone (except SD card data) will be cleared, including downloaded software, phone book, login account (some models will clear vivo account) and so on.

Note: Please back up the important data in your mobile phone before this operation! ! !

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