Samsung SGH-E105CSATMB - Manual (Page 20)

Display
17
Backlight
The display is illuminated by a backlight. When you press any
key, the backlight illuminates. It turns off if no key is pressed
within a given period of time, depending on the Back Light
menu option.
To specify the length of time for which the backlight is active,
set the Back Light menu option (Menu 5.2.4).
You can also set the phone to use the backlight only during a
specified period time, via the Auto Light menu option (Menu
5.2.5).
Display
Your phone has an external display. It indicates that you have
an incoming call or a message, and notifies you at the specified
time when you set an alarm.
Service Light
The service light is in the top right-hand corner of the phone. It
flashes when services are available on the phone.
Appears when you set the alarm.
Shows the level of your battery. The more bars you see,
the more power you have left.
Appears when the Mute mode is active.
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