LG -K420n Guia Del Usuario página 121

Setting up the Knock Code feature
1 Tap >
> Knock Code.
2
Tap the squares in a pattern to set your Knock Code. Your Knock Code
pattern can be 6 to 8 taps.
Unlocking the screen using the Knock Code
You can unlock the screen by tapping the Knock Code pattern you already
set, when the screen turns off.
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.
Smart Lock
You can use Smart Lock to make unlocking your device easier. You can set
it to keep your device unlocked when you have a trusted Bluetooth device
connected to it, when it's in a familiar location like your home or work, or
when it recognises your face.
Setting up Smart Lock feature
1 Tap >
2 Before you add any trusted devices, trusted places, or trusted face, you
need to set up a screen lock (Knock Code, Pattern, PIN or Password).
Basics
> Display tab > Lock screen > Select screen lock
>
> Display tab > Lock screen > Select screen lock.
>
> > Display tab > Lock screen > Smart Lock.
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