Turn mobile data on or off
Making a video call on my mobile phone using FaceTime
Turn use of PIN on or off
If you have problems sending and receiving email, you can delete the email account from your mobile phone and then set it up again.
Find "Mail, Contacts, Calendars"
Tap Mail, Contacts, Calendars.
Delete email account
Tap the required email account.
Tap Delete Account.
Return to the home screen
Tap the Home key to return to the home screen.
Tap anywhere to dismiss
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