Samsung Galaxy Grand Prime - Manual (Page 19)

Getting started
19
Locking and unlocking the screen
Pressing the Power button turns off the screen and locks it. Also, the screen turns off and
automatically locks if the device is not used for a specified period.
To unlock the screen, press the Power button or the Home button and flick your finger in any
direction within the unlock screen area.
You can change the unlock code to unlock the screen. Refer to Changing the screen lock
method for more information.