Set up your mobile phone for internet
Choose network mode
Choose a network
Turn GPS on or off
Turn data roaming on or off
Some applications aren't ended completely when your mobile phone returns to the home screen. If you don't end them from the list of running applications, they keep running in the background which may slow down your mobile phone.
End running applications
Tap the Application key.
Tap CLOSE ALL to close all running applications.
Tap anywhere to dismiss
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