1. Travel card indicates failure.
2. Open the phone settings interface and click Mobile Network.
3. Click Move Data.
4. Next, switch networks. Sometimes the network is bad and the query will fail.
5. Enter the travel card page again, and then click Login. See more 1. First, enter the city name+health code 2 in Alipay "search box". Enter city name+health code. For example, after Shanxi health code, relevant pages will appear, and you can click the mark to view it. As long as the first application is successful, your "health status" will be displayed directly after clicking.