Why can't Tencent Health System change QQ?

It is because of the risk of logging in with different devices that the account is frozen and it will take several days to query.

You can unfreeze by appealing, as follows:

1. Before complaining, there is a premise that there are three people you often contact or three friends next to you in this frozen QQ number, which makes it faster and more convenient to complain.

2. Open the QQ login page, find "password retrieval" on the right, click in and enter the home page. There is an "Account Complaint" on the lower left. Click it and follow the steps inside.

After that, you will get a receipt code, remember it and send it to your three friends. Before that, after you fill in your friend's help number, their mailbox will receive a friend's help email. Please fill in this receipt code in the corresponding box.

4. Wait patiently for a while, and then check the progress of the complaint. With the help of friends, the system will let you reset your new information and password.

5. After completion, you can log in successfully.