1 Turn mobile data on or off
Slide two fingers downwards starting from the top of the screen.
Press Mobile data to turn the function on or off.
2 Turn use of mobile data for applications on or off
Press the settings icon.
Press Wireless & networks.
Press Data usage.
Press the required SIM.
Press Network access.
Press the field next to the application name in the "Mobile data" column to turn the function on or off.
3 Return to the home screen
Press the Home key to return to the home screen.