LG K120 User Manual page 24

Power/Lock Key
Volume Keys
NOTE : Proximity sensor
When receiving and making calls, the proximity sensor automatically turns the
backlight off and locks the touch screen by sensing when the phone is near your
ear. This extends battery life and prevents you from unintentionally activating
the touch screen during calls.
WARNING
Placing a heavy object on the phone or sitting on it can damage the display
and touch screen functions. Do not cover the proximity sensor with screen
protectors or any other type of protective film. This could cause the sensor to
malfunction.
Basics
Turn your device on/off by pressing and holding
this key.
Press once to turn the screen on/off.
While the screen is off:
Press either Volume key twice to launch the
Camera and take a picture.
On the Home screen:
Control ringer volume.
During a call:
Control your earpiece volume.
When playing audio/video:
Control volume continuously.
23