How to adjust oppo mobile phone short message if it doesn't ring?

Hello, you can click the settings on the desktop-enter the notification and status bar, then enter the notification management-click the information, and finally turn on the notification bell and vibration.

How to change the ringtone of oppo mobile phone

First, look for the settings on your phone and open it.

Let's click on the sound settings in the settings! Then turn on the bell!

Then we choose custom and find the music downloaded on the mobile phone!

After we find a song on the mobile phone, select the song and confirm! So our ringtone will be changed!