I can't make voice calls

Turn flight mode on or off

Slide two fingers downwards starting from the top of the screen.
Press the flight mode icon to turn the function on or off.
Press the Home key to return to the home screen.
  • 1
    Turn flight mode on or off
    • Slide two fingers downwards starting from the top of the screen.
    • Press the flight mode icon to turn the function on or off.
  • 2
    Return to the home screen
    • Press the Home key to return to the home screen.