LG G4 User Manual page 19

To unlock the phone
If you don't use the phone for a while, the screen and backlight will turn off
to conserve battery power. To unlock the phone's default Lock screen:
NOTE The default Lock screen simply locks the screen to prevent unintentional actions. For
more security to guard against unauthorized use, you can set an unlock requirement
(such as a Knock Code, pattern, PIN, password) that will need to be entered to unlock it.
1. Turn the screen on.
Press the Power/Lock Key
phone).
NOTE Avoid covering the proximity sensor when turning the screen
on. Doing so, immediately turns the screen off.
OR
Quickly double-tap the center of the screen
(KnockON).
2. From the center of the screen, swipe in any direction
to unlock it.
To use a shortcut, swipe the shortcut icon (at the bottom of the
screen) in any direction. The screen will unlock and launch the app.
(on the back of the
The Basics
17