Keys Function
Power Key
Hold down to power on your phone.
Press to switch to sleep mode.
Press to wake up.
Hold down for Silent mode, Airplane mode or Power off.
Back
Press to go to the previous screen.
Press to exit applications.
Home
Press to return to the Home Screen from any screen.
Hold down to access Google Search
Options
Press to get the options on the current screen.
Hold down to see the recently used applications.
Volume Keys Use to control the volume Up and Down