Method 1: Press the Volume Down/Up or Power button on the side of your device.
Method 2：Enable the Gesture function by going to the 「Phone」 app and pressing the menu key
in the top right corner of the screen. Then go to 「Settings」 -> 「Accessibility」 and activate 「Turn over to mute」. You can then mute incoming calls by turning the phone over when a call is being received. Method 3: Go to menu -> 「Settings」 -> 「Sound」-> activate 「Silent mode」.
Method 4: Drag the Status Bar down with your finger and then touch the 「Notification」 icon to change to 「Vibrate」.
Note: Press the 「power」 key and 「volume up」 key at the same time to switch to vibration mode quickly.
