QQ Security Center failed to unbind.

try again. 1. If any kind of secret mobile phone, secret card or secret token is available, you can log in to QQ Security Center (), select "Secret Management" and click "Replace" to replace the secret mobile phone, and pass the "Unified Security Verification". 2. You can also edit the short message "SJ or sj QQ account new secret mobile phone number" with the original secret mobile phone (for example: SJ 123456 13888888888, spaces can be replaced by #)) and send it to mobile and telecom users at 1661799. Unicom access number inquiry address: /sj 3. If there is no available secret protection means, you can change the secret protection mobile phone through "account appeal".