How to bind and unbind QQ via SMS?

1, open QQ, and click on the personal avatar in the upper left corner.

2. Enter your personal information, and then click the settings below.

3. Enter the settings page and click the phone number option.

4. Enter the mobile phone number page and click Replace.

5. Enter the mobile phone number replacement page and click the three points in the upper right corner.

6. Then click Unbind.