The health code bound on the family's mobile phone has been unbound. Why can't you tie it to your mobile phone?

This situation is generally because the children's own registered mobile phones are used by the elderly to cope with daily communication.

Because of the need to show health codes and vaccination in public places to fight the epidemic, this information cannot be provided.

At this time, the children need to go through the identity change formalities with the communication company to which their mobile phone number belongs, input the mobile phone number and verification code of the elderly, and automatically display the health code and the golden shield sign after confirmation.