Xiaomi 3v6 does not display the number of qq messages, and there is no red circle. You can't receive qq messages when you open other software.

1. mobile phone system settings: enter the settings menu and select "notification and status bar".

2. Turn on the "Show application icon when notifying" switch inside.

3.QQ program settings: log in to QQ and click on your avatar in the message interface.

4. Click the "Settings" button in the lower left corner in the pop-up menu.

5. Click "Accessibility" in the setting menu.

6. Turn on the "Display QQ icon in system notification bar" switch to display QQ icon.