How to view the travel track when the travel card is offline?

1. Search for health travel codes. Wechat search a local healthy travel code applet. Take Hebei as an example, search for "Hebei health code". Search results appear, click select applet, click Hebei Jiangkang code, and enter. 2. Click the travel card to log in to the Hebei Health Code interface, slide down, find the travel card for communication big data, and click Enter. 3. Enter the contact number of the verification information, get the verification code, enter the verification code, and click "Agree" to verify the information. 4. After viewing the travel verification information, enter the communication big data travel card interface to view the travel trajectory within 14 days.