3 
Key functions 
Back    Touch to open the previous screen you were working in. 
If the onscreen keyboard is open, touch it to close the keyboard. 
Home    Touch to open the home screen. If you’re viewing the left or right 
extended home screen, Touch it to open the central home screen. 
Recent Apps  Touch to open the Recent Apps list 
Power key  Press it to turn on/off the display. 
Long press it to open a menu with options for Airplane mode, for 
Silent mode, for Vibration mode, and for powering off the phone. 
Volume keys  Adjust the volume.   
Long press it to quickly adjust the ring tone volume to maximum or 
minimum. 
Press to access the Interruptions panel 
Press to control in call volume 
Press to control media and apps volume 
Screen Capture  Press the Volume Down and Power key at the same time 
Android Recovery    Hold the Volume Up key, then power On your device.