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Basic functions
Calls, contacts & calendar
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Troubleshooting
My phone's battery life is short
Sound settings
Select ring tone
Select message tone
Turn silent mode on or off
Turn vibration on or off
Select ring volume
Screen settings
Select language
Set date and time
Set screen brightness
Use push notifications
Select Night Shift settings
Select settings for Control Centre
Use Control Centre
Voice control
Select settings for Siri
Use Siri
Security settings
Turn use of PIN on or off
Change PIN
Unblock PIN
Turn use of phone lock code on or off
View network lock status
Software update
View software version
Back up phone memory to iCloud
Update phone software
Restore factory default settings
Back up phone memory using iTunes