The specific steps are as follows:
Step 1: Open the WeChat app and click My, Payment Item in the lower right corner.
Step 2: Click on the personal page and select the epidemic prevention health code item.
Step 3: Switch the health code page to Chongqing, and click View Yukang Code.
Step 4: Click Select to report health information on the code page of Yukon.
Step 5: Modify personal basic information and other contents on the health information page. If you want to change your phone number, please change your phone number here, and then submit the modification.