I have encountered the problem of how to get back the old Tik Tok before, and this problem is easy to solve. Next, I'll tell you how to operate:

Tools: Redmi k50, Tik Tok 24.7.0.

Step 1: Open the mobile phone Tik Tok APP, click Me in the lower right corner, and click Help and Settings. (as shown in the figure below)

Step 2: Click Retrieve Account to retrieve other accounts. (as shown in the figure below)

The third step is to choose the retrieval method, taking the original mobile phone as an example. (as shown in the figure below)

Step 4: Enter the mobile phone number, click Next, a pop-up window will pop up, and click Login directly. (as shown in the figure below)

These are all the steps to get back the old Tik Tok. If it's useful to you, remember to like it for me ~