LG LGH850TR User Guide

Page of 298
Basic Functions
36
Proximity/Ambient light sensor
 - Proximity sensor: During a call, the proximity light sensor turns off 
the screen and disables touch functionality when the device is in 
close proximity to the human body. It turns the screen back on and 
enables touch functionality when the device is outside a specific 
range.
 - Ambient light sensor: The ambient light sensor analyses the 
ambient light intensity when the auto-brightness control mode is 
turned on.
Laser detection auto-focus
 - Detects the distance from the camera to your subject for automatic 
focusing.
 - Quickly focuses on closer or farther objects when you use the rear 
camera to take photos.
Volume keys
 - Adjust the Volume for ringtones, calls or notifications.
 - Gently press a Volume key to take a photo. To take continuous shots 
of photos, press and hold the Volume key.
 - Press the Volume Down (-) key twice to launch the 
Camera app 
when the screen is locked or turned off. Press the Volume Up (+) 
key twice to launch 
Capture+.
Power/Lock key (Fingerprint sensor)
 - Briefly press the key when you want to turn the screen on or off.
 - Press and hold the key when you want to select a power control 
option.
 - Gently put your finger on the key when you want to unlock the 
screen with your fingerprint.