Home key
To access the home screen, press the home key briefly. Press
the home key briefly again to access the menu.
To view the list of active applications, press the home key for
a few seconds. When the list is open, press the home key
briefly to scroll the list. To open the selected application,
press the home key for a few seconds, or press the scroll key.
To close the selected application, press the backspace key.
Leaving applications running in the background increases the
demand on battery power and reduces the battery life.