OPPO Find X5 Lite
Android 11.0
1 Find "Incoming messages"
Press the message icon.
Press the menu icon.
Press Settings.
Press General.
Press Notifications.
Press Incoming messages.
2 Turn on message notifications
Press the indicator next to "Allow notifications" to turn on the function.
3 Select message tone
Press Ringtone.
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.