LG G3 - Manual (Page 22)

Phone Basics 13
1. Tap > > Settings.
2. From the DEVICE section, tap Lock screen.
3. Tap Select screen lock and tap Knock Code.
4. Use the 2x2 grid to create a sequence of knocks (or taps) to set your knock code.
Note: You have to create a Backup PIN as a safety measure in case you forget your unlock
sequence.
To unlock the phone using Knock Code:
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While the screen is off, tap the same sequence you established anywhere on the screen. The
Home screen will be accessed directly.
Hardware Key Control Mode
If your phone display is damaged or broken, you can answer an incoming call, end a call, or turn off
an alarm using the hardware keys.
1. Turn your phone off.
2. Press and hold the Power/Lock Button and the Volume Buttons at the same time
for more than 6 seconds to enter the Hardware key control mode.
3. Press the Volume Buttons to scroll to the desired option, then press the Power/Lock
Button to confirm.
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Answer call: Press both Volume Buttons at the same time.
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Stop alarm: When an alarm rings, press and hold the Volume Up Button to stop the
alarm.