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You can turn off all wireless connections so your phone can’t cause any interference with sensitive equipment in a plane or a hospital. You can still use your phone when flight mode is turned on, but you can’t send messages or make calls.
Find "Network Connections"
Slide your finger downwards starting from the top edge of the display.
Press Network Connections.
Turn flight mode on or off
Press the indicator next to "Flight Mode" to turn the function on or off.
Return to the home screen
Slide your finger upwards starting from the bottom edge of the display to return to the home screen.