6 
  Touch to return to the home screen from any application or 
screen. 
  Touch and hold to use Google search. 
Recent Apps Key 
Touch to see recently used apps. 
Back Key 
Touch to go to the previous screen. 
Volume Key 
Press or hold either end to turn the volume up or down. 
Camera Key 
  When the camera app is launched, press or hold to take one 
or multiple pictures. 
  In other screens, press twice to launch the camera and 
automatically take a picture. 
  NOTE:   
The positions of the Recent Apps Key and the Back Key are 
interchangeable through Settings > Navigation key. 
 
Installing the nano-SIM Card 
1.  Insert the tip of the tray eject tool into the hole next to the 
nano-SIM card tray on the left side of the phone.