LG G4 Guia Del Usuario página 136

Laser Detection
Power/Lock Key
NFC Touch Point
Power/Lock Key
Volume Keys
WARNING
The NFC antenna for this model is on the back cover.
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Be careful not to damage the NFC touch point on the phone, which is part
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of the NFC antenna.
22
AutoFocus
Speaker
Turn your phone on/off by pressing and holding this key.
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Short press to lock/unlock the screen
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(While screen is off)
Press Volume Up Key twice to launch QuickMemo+
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Press Volume Down Key twice to launch Camera
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Rear Camera Lens
Flash
Volume Keys
Getting to know your phone