COVID-19 has been vaccinated. Why does it show that I didn't get vaccinated when I changed my mobile phone?

COVID-19 vaccine has been vaccinated, but changing the mobile phone shows that it has not been vaccinated for the following reasons:

1. Network connection problem: If the network connection is unstable, vaccination information may not be transmitted normally. It is recommended to check whether the mobile phone network is normal.

2. Delayed update of vaccination information: Sometimes, the update of vaccination information may be delayed. You can try to re-enter the vaccination information query page, or wait for a while to view it.

3. Vaccination records are lost: Sometimes, vaccination records may be lost for various reasons. It is suggested to contact the vaccination institution or local health department to ask if there are other ways to inquire about vaccination records.

4. Inoculation information is misjudged: Sometimes due to data errors or other reasons, inoculation information may be misjudged as non-inoculation. If this happens, it is recommended to contact the vaccination agency or the local health department for advice on how to deal with it.

Generally speaking, if COVID-19 vaccine has been vaccinated but another mobile phone shows that it has not been vaccinated, it is recommended to check whether the network connection is normal first, and then try to re-enter the inquiry page or wait for a while before checking. If the problem still exists, it is recommended to contact the vaccination agency or the local health department for help.