Calls and contacts
Apps and media
Cause 4 of 4: Mobile data is turned off
To use the phone's internet connection, mobile data needs to be turned on.
Solution: Turn on mobile data.
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.
Return to the home screen
Press the Home key to return to the home screen.