Learn how to use Airplane Mode on your HTC One M8. When you enable Flight mode, all wireless radios on HTC One are turned off, including the call function, data services, Bluetooth, and Wi-Fi.
When you disable Flight mode, the call function is turned back on and the previous state of Bluetooth and Wi-Fi is restored.
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Do any of the following to turn Airplane mode on or off:
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When enabled, the Airplane mode icon is displayed in the status bar.