Using tethering on my mobile phone
Writing and sending MMS
Sharing pictures or video clips using iCloud Photo Sharing
Using my mobile phone camera
Turning data roaming on my mobile phone on or off
Some applications aren't ended completely when your mobile phone returns to the home screen. They keep running in the background unless you end them from the list of active applications.
End active applications
Tap the Home key twice.
A list of active applications is displayed.
Slide the required application upwards to end it.
Return to the home screen
Tap the Home key to return to the home screen.
Tap anywhere to dismiss
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