1. First, open the mobile phone WeChat, enter the Tianfu health code, and search, as shown below.
2. Then, on the open search page, click the Tianfu Health link, as shown in the figure below.
3. Then in the open page, click the location code, as shown in the figure below.
4. Then in the page that opens, click Add Local Code, as shown in the figure below.
5. Finally, in the opened page, enter the location information and click Submit, as shown in the figure below.