Several functions are associated with On/Off:

Tap On/Off to turn on your mobile phone.

Tap and hold On/Off to access other functions, such as silent mode and flight mode.

Tap the Home key to return to standby mode.

Tap the Return key to exit an active menu item.

Tap the Menu key to open a pop-up menu.

Tap the Top volume key or the Bottom volume key to adjust the volume.

Connect the charger or data cable to the phone socket and to a power point or your computer's USB port.

Connect the headset to the headset socket at the top of your mobile phone.

Point the camera lens at the back of your mobile phone at the required object to take a picture, record a video clip or during a video call.

Point the camera lens at the front of your mobile phone at the required object during a video call.