If you wish to enable/disable the “Flight Mode” option on your device, please follow the steps below –

1) Go to the main ‘Menu’ by pressing the top left button on the keypad.
2) Scroll down and select “Settings” (icon shows a picture of a wrench and two gears).
3) Select “Call Settings”.
4) Select “Dual-SIM”.
5) Select “Standby Mode”.
6) Scroll down and select the “Flight Mode” option to add or remove the tick from the box.