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Samsung Galaxy S21 5G
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Guide to keys and sockets on mobile phone
The list below shows you what the different keys and sockets on your mobile phone are used for.
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The Side key
Tap the Side key to turn on your mobile phone.
Tap the Side key to turn on the screen lock.
Tap the Side key to access the voice control menu.
The Home key
Tap the Home key to return to the home screen.
The Return key
Tap the Return key to return to the previous screen.
The Application key
Tap the Application key to open a list of the most recently used applications.
The Volume key
Tap the upper or lower part of the Volume key to adjust the ring volume.
Tap the upper or lower part of the Volume key during a call to adjust the volume.
Tap the upper or lower part of the Volume key to silence the incoming call alert.
Socket
Connect the charger or data cable to the socket and to a power point or your computer's USB port.
Connect the headset to the socket to listen to music or make a handsfree call.
Fingerprint sensor
Place your finger on the fingerprint sensor to unlock your mobile phone.
Camera lens at the back of your mobile phone
Point the camera lens at the back of your mobile phone at the required object to take a picture or record a video clip.
Camera lens at the front of your mobile phone
Point the camera lens at the front of your mobile phone at the required object to take a picture or record a video clip.
Tap the Home key to return to the home screen.
Tap the Return key to return to the previous screen.
Tap the Application key to open a list of the most recently used applications.
Place your finger on the fingerprint sensor to unlock your mobile phone.
Point the camera lens at the front of your mobile phone at the required object to take a picture or record a video clip.
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