Samsung SGH-X427ZSACIN - Manual (Page 18)

Your Phone
18
Backlight
A backlight illuminates the display and the keypad. When
you press any key or open the folder, the backlight turns
on. It turns off when no keys are pressed within a given
period of time, depending on your setting in the Back
Light menu (Menu 9.1.5). After one minute, the display
turns off to conserve your battery power.
To specify the length of time the backlight is active, set the
Back Light menu (Menu 9.1.5). See “Back Light” on
page 152 for further details.
Service Light
The service light is at the top right-hand corner of the
phone. It flashes when services are available on the
phone.
To activate or deactivate the use of the service light, set
the Service Light menu (Menu 9.1.6). See “Service Light”
on page 152 for further details.