OPPO Find X2 Pro
Android 10.0
1. Find "Notification Management"
Press the message icon.
Press the menu icon.
Press Settings.
Press Notification Management.
2. Turn on message notifications
Press the indicator next to "Allow Notifications" to turn on the function.
3. Select message tone
Slide two fingers downwards starting from the top of the screen.
Press the settings icon.
Press Sound & Vibration.
Press Message Tone.
Press the required message tones to hear them.
Once you've found a message tone you like, press the Return key.
4. Return to the home screen
Press the Home key to return to the home screen.