On/Off
Several functions are associated with On/Off:
Press On/Off to turn your phone on or off.
Press On/Off to turn on the screen lock.
Press and hold On/Off to access silent mode and flight mode.
The Return key
Press the Return key to exit an active menu item or hide the keypad.
The Application key
Press the Application key to view a list of the most recently used menu items and applications.
Press and hold the Application key to view two applications at the same time.
The Home key
Several functions are associated with the Home key:
Press the Home key to return to the home screen.
Press and hold the Home key to search the internet.
Press the Home key twice in quick succession to turn on the phone camera.
The Volume keys
Several functions are associated with the Volume keys:
Press the Top volume key or the Bottom volume key to adjust the ring volume.
Press the Top volume key or the Bottom volume key during a call to adjust the volume.
Press the Top volume key or the Bottom volume key to silence the incoming call alert.
Socket
Connect the charger or data cable to the socket and to a wall socket or your computer's USB port.
Headset socket
Connect the headset to the headset socket.
Heart rate sensor
Place the tip of your finger on the heart rate sensor to check your heart rate when using S Health.
Camera lens at the back of your phone
Point the camera lens at the back of your phone at the required object to take a picture or record a video clip.
Camera lens at the front of your phone
Point the camera lens at the front of your phone at the required object during a video call.