LG LGL55C User Manual page 94

Device Settings
Pattern: The first time you set unlock pattern, you will see a tutorial with
instructions on how to create it. Read the tutorial and tap Next (twice).
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Draw your pattern and tap Continue. Then redraw your pattern and tap
Confirm. (Connect at least four dots.)
PIN: Enter a PIN (at least of four digits) and tap Continue. Then re-enter
your PIN and tap OK.
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Password: Enter a Password (at least of four characters) and tap Continue.
Then re-enter your Password and tap OK.
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From then on, any time you wish to turn the phone on or unlock the screen, you
must draw your unlock pattern or enter the PIN or Password to unlock the
screen.
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