How does Redmi k40 remove the qq group entrance verification code?

Qq SMS receiving verification has been cancelled. Tools/raw materials: Redmi k40, MIUI 12.5, local setting 12.5.

1. The first thing you need is to open your mobile QQ and click the settings icon in the upper right corner of the group chat page.

2. In the next procedure, you need to click Manage Groups, and then click Add Group Method.

3. Click "Allow anyone to join the group" to cancel.