Samsung SGH-D307MSACIN - Manual (Page 35)

Section 2: Understanding Your Phone 35
Command Keys
Section 2
Navigation Keys
Use the directional keys on the navigation key to browse
menus, sub menus, and lists. Each key also acts as a
shortcut to launch applications. The navigation keys are
user-definable.
Back Light
The backlight illuminates the display and the keypad.
When you press any key or open the phone, the backlight
turns on. It goes off when no keys have been pressed
within a given period of time, depending on the setting in
the Back Light menu.
External LCD
Your phone has an external display on the front of the
phone. It indicates when you have an incoming call or a
message. It also alerts you at a specified time when you
have set an alarm. The backlight turns on and the
corresponding icon appears on the external display.
You can change the display type for the external display
in the Front LCD Display menu.