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48 Installing an application
48 Sharing an application
49 Uninstalling an application
49 Clearing the application cache
Phone Manager
50 Optimizing the system
51 Power manager
51 Harassment filter
Backup, restoration, and update
53 Backing up data to the local storage
53 Restoring data from the local storage
54 Restoring factory settings
54 Online update
Tools
55 Calendar
55 Clock
57 Weather
Phone settings
59 Turning on or turning off airplane mode
59 Adjusting the screen brightness
59 Modifying tone settings
60 Modifying display settings
61 Turning on or turning off do not disturb mode
61 Setting the date and time
62 Changing the system language
62 Setting the PIN of your SIM card
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