There are two kinds of people's health codes that will be temporarily marked as gray codes. One kind is mainlanders who come to (return to) Wuhan, including those who passed through Wuhan. After they arrived in Wuhan, they failed to implement the policy requirements in time: nucleic acid testing is needed for three days and two inspections. If these two conditions are met, the health code will be marked as Gray code.
The second is the personnel in Wuhan who have not been tested for nucleic acid within 48 hours, that is to say, those who have no negative proof of nucleic acid test within 48 hours will also be marked as Gray code.
In fact, it is also very simple, just need to seriously implement the epidemic prevention requirements: complete the nucleic acid sampling at the designated place in Wuhan, and the health code will automatically turn into a green code after half an hour.
Precautions:
If the body is normal and meets a series of requirements of transcoding, then the mobile phone system will naturally turn the gray code into the green code. If the area is the hardest hit and risk control management has been implemented, health codes will not be issued to residents at this time. So at this time, the health code has been showing the appearance of gray code. After the wind control measures are completely unblocked, the health code may be changed back to the green code.