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How do I use the Airplane Mode setting on my Samsung Galaxy S™ 4G?
Current FAA regulations require you to set your device to its Flight or “offline” mode. This feature turns off all of your device’s wireless transmitting features, like Wi-Fi®, Bluetooth®, and the connection to your wireless service provider. To quickly access and activate Flight mode, press and hold the power key for 1-2 seconds. The Phone options menu will be shown. Touch Flight mode to turn the Flight mode feature on or off.