iii
Backup, restoration, and update
49 Backing up data to the local storage
49 Restoring data from the local storage
49 Restoring factory settings
50 Online update
Tools
51 Clock
52 Weather
Phone settings
54 Turning on or turning off airplane mode
54 Adjusting the screen brightness
54 Modifying tone settings
55 Modifying display settings
56 Turning on or turning off do not disturb mode
57 Setting the date and time
57 Changing the system language
57 Setting the PIN of your SIM card
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