The touch screen of ViVO mobile phone has no ringing, short message and no sound. What happened?

If mute mode is turned on, go to Settings-Sound and turn off mute. If you don't restart the phone or restore the factory settings.

1. The volume adjustment key on the right side of the mobile phone can be set as ringtone adjustment or media sound adjustment.

2. Pull up the toolbar and click the vibration mode, which will have the following effects:

1. The ringtone volume is immediately blocked. After canceling the vibration mode, the volume of the ringtone returns to its original level.

2. Media ringtones are immediately blocked, such as QQ message prompts, mobile phone keystrokes, etc. It's all blocked After canceling the vibration mode, the volume of the media is restored as before.

3. After clicking the vibration mode, the sound is shielded, but it will be accompanied by vibration sound.

3. If you want to achieve a completely silent state, first click the vibration mode, and then manually open the pull-up toolbar to minimize the media volume (to prevent individual software media sounds and video sounds). After clicking the vibration mode, press the volume reduction key on the right side of the mobile phone, and the vibration will be cancelled (the volume key on the right side of the mobile phone is set to the ringtone volume). At this point, the phone reaches a completely silent state.