How to unlock QQ by sending SMS?

The method of unblocking QQ by SMS is as follows:

1. Open QQ Security Center? Unprotected mode;

2/ Login restriction/Login restriction index

2. Enter the QQ number and verification code to be unsealed;

3. The following two unsealing prompts will appear. If there is secret protection, it can be unsealed in the first way. If there is no mobile phone and no secret protection, it can be unsealed in other ways (as shown below).

4. send text messages. After sending, click on the sent SMS, and the SMS will be unsealed.