LG 4015 - Manual (Page 17)

16
Antenna
Ear-microphone
jack
Side keys
Backlight
A backlight illuminates the display and the keypad. When you press any
key or open the flip, the backlight turns on. It turns off if no key is pressed
within a given period of time, depending on the Backlight menu option.
After one minute, the display turns off to conserve your battery power. To
specify the length of time the backlight is active, set the Backlight menu
option (Menu 9.1.2). See page 72 for further details.
Lamp
The red light illuminates when you turn the power on and when you have
an incoming call or message.
Your Phone
Lamp