AMobile GT78-VN, User Manual

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Using the Device
3.1.3 Sleep Mode
When the device suspends to sleep mode, it enters a low power state and the
display is off to save the battery power. You can manually force the device to
enter sleep mode or specify a period of inactivity before it automatically enters
sleep mode. While the device is in sleep mode, it is still capable of receiving
messages and calls and processing tasks like downloading.
To switch to sleep mode, press and hold the Power key until the screen is turned
off.
To wake up the device from sleep mode, press and hold the Power key until the
screen is turned on. If the screen is locked, swipe the screen and unlock the
device.
To specify the period of inactivity, swipe down the Status Bar in the upper right
corner and tap Settings | Display | Sleep timeout. Then select a time of inactivity
before the device enters sleepmode.