There is sound in the incoming call of vivo mobile phone, but there is no sound in the short message. Obviously, the volume has been adjusted.

According to your description, I suggest you try the following methods:

1, try to turn the volume of your mobile phone to the maximum.

2. You can try to set the ringtone in Settings-Sound-Information ringtone.

3. You can enter information-click the menu button on the left-Settings-Open the notification to try.

If it still doesn't work, I suggest you try to restore the factory settings. Click Settings-General/More Settings-Restore Factory Settings-Restore All Settings. Restoring all settings will not delete any data in the phone.