Samsung SGH-X105NBATMB - Manual (Page 84)

Phone Settings
81
Back Light
You can select whether or not the phone uses the backlight. A
marginal increase in standby/talk time can be achieved by
turning the backlight off.
The following options are available.
OFF: the backlight is not used.
15 Seconds : the backlight comes on when you press a key or
receive a call and switches off 15 seconds after the last key is
pressed.
30 Seconds: the backlight comes on when you press a key or
receive a call and switches off 30 seconds after the last key is
pressed.
1 Minute: the backlight comes on when you press a key or
receive a call and switches off 1 minute after the last key is
pressed.
3 Minutes: the backlight comes on when you press a key or
receive a call and switches off 3 minutes after the last key is
pressed.
10 Minutes: the backlight comes on when you press a key or
receive a call and switches off 10 minutes after the last key is
pressed.
Auto Light
Using this feature, you can specify the time for which the
backlight is to be used. This feature helps conserve your battery
power.
The following options are available.
Disable: the backlight is used according to the setting in the
Back Light menu option (Menu 5.1.5); see page 81.
Enable: the backlight is used only during the specified period
of time. Set the required length of time in hours and minutes,
using the appropriate number keys.