The health code has been waiting for approval, and it may be a network problem. In this case, it is best to connect to a nearby wireless network. If only there was no wireless network. As long as the mobile phone is not in arrears, it can be turned off and restarted, so that the network signal will be reconnected and the approval will be faster.
If you modify the health code information, such as changing the mobile phone number, you need to wait about two hours for synchronization, and then try to re-associate the binding.