In flight mode the connection to the network is deactivated, so as not to cause interference with sensitive equipment on a plane or in a hospital, for example.
You can still use the remaining functions when flight mode is activated, but you cannot send messages or make calls.
Follow these instructions to activate or deactivate flight mode.
Activate or deactivate
Press and hold On/Off
Press Airplane mode
Depending on the current setting, flight mode is now activated or deactivated
If you deactivate flight mode:
Key in the PIN and press OK