LG GS390GO - Manual (Page 84)

Settings
79
Languages
You can change the language for the display
text on your phone. This change will also
affect the Language Input mode.
Auto Key Lock
This allows you to set the amount of time
before your screen locks automatically.
Set Flight Mode
This allows you to use only the phone's
features that do not require the use of the
wireless network when you are in an airplane
or in places where the wireless network is
prohibited. If you set the flight mode
,
you will be prompted to confirm your
selection. After you confirm it by touching
the Flight mode icon will be displayed
on the screen instead of the network signal
icon.