Adjust Sound Settings
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| Adjust Sound Settings |
Press a Volume Button to Adjust the Volume
Press the Volume up or down button to adjust the volume.
Press the Power Button to Mute Your Device When It Rings
When your device rings for an incoming call or alarm, you can press the Power button to mute it.
Use a Shortcut to Switch Between Ring, Vibrating, or Mute Mode
Swipe down from the status bar to open the notification panel, then swipe down on it again to show all shortcuts.
Touch the
Sound, 
Silent, or 
Vibration icon to switch between different modes.
Thanks for your feedback.