Locking and unlocking the screen
When your device is on and left idle for a set period of time, the screen darkens to
save battery power, and locks automatically. This lock prevents unwanted actions on
the touch screen when you are not using it.
To activate the screen
Briefly press the power key .
To unlock the screen
Place a finger on the screen and swipe up or down.
There are several ways to unlock the screen. For more information, see
Setting a screen lock
on page 113.
To lock the screen
When the screen is active, briefly press the power key .