Qq bound mobile phone number has changed, so you can't log in now. What should I do?

1. When opening QQ login, click "Retrieve Password" behind the password input box to enter the QQ Security Center.

2. Click on the password-protected mobile phone in the password-protected tool, enter a new mobile phone number according to the prompt after input, and verify by SMS.

3. After submitting the application for changing the mobile phone number according to the prompt, the review period is 6 hours.

You can see the changed mobile phone number when you come back. After 6 hours, you can verify QQ with your new mobile phone number.