How to untie the mobile phone after WeChat Alipay changed the small speaker?

2. Log in with the Alipay account and password entered here.

3. After logging in to Alipay, click the "Account Settings" hyperlink at the top.

4. In the open account setting interface, click the mobile phone setting menu item on the left.

5. You can see the bound mobile phone number here, and click the "Modify Number" link on the right.

6. If the original number is no longer available, that is, you can't receive short messages, then you can only modify it through authentication certificate and password protection, or manual service.

7. If the original number can still receive short messages, click the "Can Receive Short Messages" link, and then select to modify the bound mobile phone through certificate and short message verification or short message verification and payment password verification in the pop-up menu.