Instructions

Long press to select the file. Click "More" > "Set as private".
To access the private safely, press and hold "Recents" or "Categories" , or you can
add a shortcut to Private Safe to your desktop to access it later.
You need to set a privacy password before using Private Safe for the first time.
Go to "Settings" > "Fingerprint, Face & Password" > "Privacy Password".
Phone Manager
"Phone Manager" is a security and optimization center. It provides useful tools such
as Virus Scan, Clean Storage, Privacy Permissions, etc.
Examine and Optimize
After entering the "Phone Manager", the system will automatically detect and score
the overall operation status.
Tap "Optimize" at the bottom of the score to optimize the system.