Settings
Device maintenance
The device maintenance feature provides an overview of the status of your device’s battery, storage, RAM, and system security. The device maintenance feature allows you to easily optimise your device and ultra data saving mode helps you manage your mobile data usage.
Battery 
Storage
Device security
RAM
Using the quick optimisation feature
On the Settings screen, tap Device maintenance →FIX NOW or OPTIMISE NOW.
The quick optimisation feature improves device performance through the following actions.
•Clearing some memory.
•Deleting unnecessary files and closing apps running in the background.
•Managing abnormal battery usage.
•Scanning for malware.
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