Samsung SPH-M840UWABST - Manual (Page 22)

Features
• Front Camera Lens lets you take pictures and videos
of yourself when you set the camera shooting mode
to Self portrait.
• Proximity and Light Sensors detects the presence of
objects, for use with motion settings,and to control
the screen display, such as when you move the
phone away from your ear during a call. Detects
ambient light when Automatic brightness is enabled,
and when using the Front camera.
• Earpiece lets you hear the caller and automated
prompts.
• Power/Lock Key lets you turn the device on or off,
or turn off the touchscreen display. When the screen
is turned off, press once to turn on the screen and
display the lock screen.
• LED Indicator flashes or glows for alerts or phone
status, when the screen is turned off.
• Menu Key allows you to display a context-sensitive
menu of options for the current screen or feature.
While using your phone, you may notice that the
Menu Key dims, but it is always available at a touch
to provide a context-sensitive menu for the current
screen or app.
• Home Key lets you return to the Home screen. Press
and hold to display recent applications or launch
Task Manager.
• Back Key returns to the previous screen or option.
While using your phone, you may notice that the
Back Key dims, but you can always use it to return to
the previous item.
2A. Device Basics 13