How to turn off the message prompt of mobile qq

Set in Settings-Message Notification-Sound.

The specific operation steps are as follows:

Open mobile QQ, enter the account password to enter the "contact" interface, and click "My avatar" in the upper left corner.

Then click "Settings"-"Message Notification"

Go to the "Message Notification" page and click "Sound".

In the "New Message Alert" column, turn off "Sound" and the button turns gray.