LG VS880 User Manual page 54

The Basics
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The first time you set a knock code, you'll see a tutorial with
instructions on how to create it. Tap a sequence on the displayed grid
(from 3 to 8 taps), then tap Done. Tap your sequence again and tap
Confirm.
NOTE You're prompted to create a Backup PIN as a safety measure in case you forget your
Knock Code unlock sequence.
Pattern: Unlocks the screen using a pattern you draw with your finger.
The first time you set an unlock pattern, you'll see a tutorial with
instructions on how to create it. Read the tutorial, then tap Next.
Draw your pattern (connect at least 4 dots) and tap Continue. Then
redraw your pattern and tap Confirm.
NOTE Follow the on-screen instructions to create a backup PIN number in case you forget your
pattern.
PIN Unlocks the screen with a number sequence. Enter a PIN (at least
4 digits) and tap Continue. Reenter your PIN and tap OK to confirm it.
Password Unlocks the screen with an alphanumeric sequence. Enter
a password (at least 4 characters) and tap Continue. Re-enter your
password and tap OK to confirm it.
From then on, any time you want to unlock the screen, you'll need to
perform the unlock action you set (swipe, face recognition, knock code,
pattern, PIN, or password) to gain access to it.
Disabling a Screen Lock
1. From the Home screen, touch and hold the Recent Apps Key
Touch Keys bar) > Lock screen settings
2. Tap Select screen lock.
3. Confirm your unlock information (if necessary).
4. Tap None.
Changing Your Screen Lock
1. From the Home screen, touch and hold the Recent Apps Key
Touch Keys bar) > Lock screen settings
2. Tap Select screen lock.
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