Of course. However, downloading is the traffic of mobile phones. The download speed will be very slow in 2G environment. Even if you can scan the code, you can't. It may not have this function. When downloading through 2G and 3G networks, it is best to use monthly traffic service. It can be used! In this case, for example, the elderly and children who can't or can't use smart phones can choose to print their own paper electronic health codes and go out to use them. This kind of certificate was stipulated when the electronic pass was announced at that time. As long as you use your mobile phone, you can't escape the big network of big data. This has little to do with intelligence and non-intelligence. The technical support they rely on is far less superficial than everyone thinks. Health QR code

Travel itinerary code can be viewed on Alipay and WeChat. Let me talk about Alipay first:

Step 1: Alipay searches for "travel code" and clicks on the epidemic prevention and control travel card.

Step 2, fill in the phone number and verify your identity.

Step 3, check my travel itinerary code.

How to view travel itinerary code in WeChat:

The first step is to search for "the State Council client". Or scan the code directly into the applet.