Ping An Baiyun Access Control has been exited, so you cannot log in.

It is recommended to log in to the previous client again, and then enter the account number and password. This is generally the way to operate, and you can log in again.

Wechat applet can open the door like finding a safe home in Baiyun.

Access cards are not encrypted at first, so they can be added directly by NFC. But later, because strangers can add community access cards at will, which leads to many obvious problems, more and more properties have adopted encrypted cards in recent years.