The prompt tone of qq message disappeared.

The Qq message prompt tone is gone, so you can restart it.

1. After logging into the account first, click the System Settings button at the bottom of the QQ panel.

2. Secondly, click the System Settings button to enter the System Settings window, and click the sound under the Basic Settings column of the window.

3. Then click Sound, and then click to set a prompt tone in the sound bar on the right.

4. Click the setting prompt to enter the setting window, and change the closed state on the window to the open state.