1. To adjust the device volume, press the Volume keys.
   
2. To set the device to vibrate, press the Volume Down key until the device vibrates and the Vibrate icon is displayed in the notifications bar.
   
3. To set the device to silent, press the Volume Down key until the Silent icon is displayed in the notifications bar.
   
4. Tap the Settings icon to access additional volume levels.
   
5. Tap Sound & Notification.
   
6. Adjust settings as desired.
   
7. To activate Do not disturb, tap toggle ON
   
8. To adjust notification alerts, tap Lock screen.
   
9. Adjust settings as desired.