Choosing a message tone for my mobile phone
Uploading pictures or video clips to social network sites
Turning GPS on my mobile phone on or off
Using tethering on my mobile phone
Using synchronisation on my mobile phone (iCloud)
Your mobile phone may not react due to overload or errors in the operating system. If this happens, it might help to restart your mobile phone.
Restart your mobile phone
Press and hold the Home key and On/Off simultaneously until your mobile phone restarts.
Tap anywhere to dismiss
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