LG L51AL Guia Del Usuario página 39

Locking and unlocking the device
Pressing the Power/Lock Key turns off the screen and puts the device
into lock mode. The device automatically gets locked if it is not used for a
specified period. This helps to prevent accidental taps and saves battery
power.
To unlock the device, press the Power/Lock Key and swipe the screen in any
direction.
Changing the screen lock method
You can change the way that you lock the screen to prevent others
accessing your personal information.
1 Tap >
2 Select a desired screen lock from None, Swipe, Knock Code, Pattern,
PIN and Password.
NOTE
Create a Google account before setting an unlock pattern and remember the
Backup PIN you created when creating your pattern lock.
38
> > Lock screen > Select screen lock.
Basics