Qq Security Center mobile version, why can't it be unlocked?

1. Open the QQ security center for mobile phone, and click I to enter account management.

2. Click the QQ number to unbind, and then select Unbind this account.

3. After receiving the unbinding prompt, select "Continue unbinding".

4. During the unbinding process, SMS will be sent to confirm the secret protection of the mobile phone, and click OK to unbind successfully.

If the QQ security center on the mobile phone is no longer available, you can rebind it on the new mobile phone, and the previously bound QQ security center will automatically become invalid.