I think that "Ringtone & Notification" on "Volume Settings" don't work on Notifications, my text messages and whapp notifications (for example) have always the same volume! (MIUI 2.8.31) Anyone can try with the latest version of MIUI? Just try min. and max values with the slider on "Ringtone & Notification" (test with whapp or a text message) MAXIMUM: 1st. "MIUI" - 2nd "Volume Control" MINIMUM: 1st. "MIUI" - 2nd "Volume Control" As you can see the notification volume doesn't change, it's already fixed on the latest MIUI version?