Operation Manual
12 Power management
Turning o the device
The turn o procedure closes all open programs, including the operating system, and then turns o the
display and device.
Turn o the device when it will be unused and disconnected from external power for an extended period.
1. Save your work and close all open programs.
2. Press and hold the power button until the slide down to power o message appears. Release the power
button, and then swipe down on the screen to turn o the device.
If the device is unresponsive and you are unable to use the preceding procedure, try the following emergency
procedures in the sequence provided:
●
Press and hold the power button for at least 5 seconds.
●
Disconnect the device from external power.
Setting power options
Using power-saving states
Initiating and exiting screen o
When the device is on, you can turn the screen o by briey pressing the power button.
To turn the screen back on, briey press the power button.
When the screen turns back on, the lock screen appears. Swipe up from the middle of the screen to return to
the screen where you stopped working.
NOTE: If you have set an unlock PIN, you must enter the PIN before the device will return to the screen.
Using the battery saver
Battery saver allows you to quickly access power settings and view the remaining battery charge.
1.
Swipe down from the top of the screen, and then tap All settings.
2. Tap System.
3. Tap Battery.
4. Follow the on-screen instructions to view the remaining battery charge, select battery use settings, or
select battery saver settings.
Using battery power
The device runs on battery power whenever it is not plugged into external AC power. Battery life varies,
depending on power management settings, running programs, display brightness, external devices
connected to the device, and other factors.
Turning o the device 37