Do not turn on Quick PowerOn while on an airplane.
2.3.4 Powering Off Your Mobile Phone
1.Press and hold 
to open the Phone optionsmenu.
2.Touch Power off.
If Quick PowerOn is enabled, the phone will enter the deep sleep mode. If Quick PowerOn is disabled, touch OK to shut down the phone.
2.4 Using the Touchscreen
2.4.1 Touchscreen Actions
•Touch: Tap the screen with your finger to select an item, confirm a selection, or start an application.
•Touchandhold: Touch an item with your finger and do not release it until the mobile phone responds. For example, to open the options menu for the active screen, touch and hold the screen until the menu appears.
•Flick: Move your finger either vertically or horizontally across the screen.
•Drag: Touch and hold the desired item with your finger. To move an item, drag the item to any part of the screen. You can drag an icon to move or delete it.
2.4.2 Rotating Your Mobile Phone Screen
The orientation of most screens will change to landscape or portrait view when you rotate your phone sideways.
On the Home screen, touch 
> Settings > Display >
2.5 Locking and Unlocking the Screen
2.5.1 Locking the Screen
•When your phone is on, press 
to lock the screen. When the screen is locked, you can still receive messages and calls.
•If your phone is idle for a while, the screen will lock automatically.
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