How to disable the flight mode (airplane mode) in Lumia 520?

[Besten Joymen]

When i update Lumia Cyan to Lumia Denim, flight mode is keep on.. How to disable or off the flight mode? I have switch but still active(on). Please help...

 

[N_LaRUE]

Try doing a soft reset and then try turning it off.

Soft reset -> hold volume down and power button together until the phone vibrates. The phone will restart. No data is deleted.