Used to download the paper version of the QR code, which can be printed or saved in the mobile phone. The availability of health code disconnected from the network can effectively meet the emergency needs of ensuring people's orderly travel in extreme situations such as health code system failure or even network interruption. Offline code refers to the use of digital technology to generate a two-dimensional code for people who don't have a mobile phone or smart phone and make it into a card. When the health code needs to be verified, the offline code is presented, scanned and verified by the inspector, and then the data is transmitted to the background, and then the background sends the inquired citizen health code information back to the inspector's mobile phone.
"Offline code" is printed into a paper version and can be used with you. It should be noted that the paper version of the offline health code has a time limit and is valid within 7 days from the date of generation.