Why can't Xiaomi mobile phone scan the address code?

The reason why the mobile phone location code can't be scanned may be that your current network signal is not good or limited. In addition, there is something wrong with the scanning code recognition system, and other software conflicts.

First, I suggest you check whether your mobile phone network is connected properly, and then check whether the QR code you scanned is correct.

It is also possible that your WeChat cache is full and needs to be cleaned regularly, or you don't have permission to open it. You should authorize WeChat to "allow photo recording" in the settings.