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Your device has a wide variety of controls to deal with wireless connectivity. You can access these controls from your phone's Set tings application. See the previous section for details on getting to the settings, but when there, select the first option: Wireless & Networks.


Figure 1.14 Getting to Settings from the home screen

The first option in this screen turns Airplane mode on or off, which disables all connections into and out of your device (see Figure 1.15). As its name implies, it is designed for when you are in an airplane. Airplane mode is important because in the United States, it is illegal to have your device turned on and potentially transmitting data while the plane you are in is in flight. Although the actual science behind whether a device could interfere with a plane and bring it down is still a matter of debate, the law is clear. Generally, your device needs to be completely powered off during takeoff and until the plane reaches 10,000 feet and then again once the plane descends below 10,000 feet until it lands. Between those times, however, you can use your device to listen to music, play games, read books, watch movies—any of the activities you can do without data connections.....


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