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Unused Apps
Open Settings and touch Apps > Unused apps to find the apps
that haven’t been used for a few months and delete them to free
up space.
App battery usage
Check each app to check for excessive use or battery drain.
Special App Access
Open Settings and touch Apps > Special app access to set
special access options of apps.
Battery
Open Settings and touch Battery to view the battery level,
enable different battery saving modes, check what has been
using the battery, manage apps intelligently, or set more options
to improve battery life.
Storage
Open Settings and touch Storage to view the memory
information of the internal phone storage
When you connect a USB storage device (such as a USB flash)
to your phone with an OTG adapter, you can view its storage
status, unmount it, or erase all data on it. See Using USB On-
The-Go (OTG).