There is something wrong with the mobile phone or computer network, which leads to errors when entering the verification code. You can check the network connection, make sure the network is clear, and then retest.

Xiaomi's server is crowded or paralyzed because of the huge simultaneous visits, and the user can't synchronize with the server in time when entering the verification code, so the input error is prompted; There is no way to solve this situation. I can only wait for Xiaomi's official maintenance or go to Xiaomi to have a look. Com at another time.

It may also be that the mobile phone system is stuck, and the verification code is not refreshed in time, so the input error is prompted; You can restart your phone or computer to solve it.

This situation is generally that Xiaomi's own app system is too old, so it is inconsistent with the latest version of the signature, and the signature verification failed.