QQ SMS unblocking shows that recent frequent violations have reached the limit of short-term unblocking.

1. First, open and log in to another normal QQ account on the mobile phone desktop.

2. Then, in the QQ main interface that opens, click the personal avatar in the upper left corner.

3. Then click "Settings" in the lower left corner in the opened personal avatar interface.

4. Then, in the open setting interface, click "Account Security" in the list.

5. Then click "QQ Security Center" in the account security interface, as shown below.

6. Then, in the opened page, click Unpack Account, as shown in the following figure.

7. Finally, in the page that opens, enter the account that cannot be logged in, and click OK, as shown below.