What if all the notifications of Xiaomi k40 mobile phone are set to one song?

In the mobile phone system settings, there are various ringtone settings, and then change them back separately.

The steps are as follows:

1. Click Sound and Vibration in the phone settings menu.

2. Click on the phone ring.

3. Click the ringtone type you want to set.

4. You can use your favorite ringtone in system ringtone, online ringtone or local ringtone.