Samsung Galaxy S21

Search for a guide or problem below or select a topic.

Restarting your phone

If your phone is slow or freezes, it might help to restart it.

Step 1 of 2

Press the Side key.

Step 2 of 2

Simultaneously, press and hold the lower part of the Volume key and keep them both pressed until your phone restarts.

Get information on...

Or choose...

Show more