There is nothing wrong with the nailed number and password, but the display number or password is entered incorrectly. Why?

In this case, the user name may be wrong, but the password is likely to be wrong, such as whether the case is wrong or not. As long as the password is wrong, you will be prompted that the user name or password is wrong.

If the user name is wrong, you should prompt that the user does not exist. Of course, if the output user name happens to be used by others, it will also prompt that the user name or password is wrong. Many times it is a system problem. You can try again later. It's best to ask the customer service to modify it and then change it back.

It is also possible that the account has not been logged in for a long time, resulting in the account being frozen by the system. You can contact customer service to help unfreeze or reapply for an account.

Extended data:

After multiple entries, if it is invalid, the password may be stolen, and the password can be reset. Can complete the authentication or secret protection with the mobile phone. This may also be just a problem that the system is busy. When logging in with the correct account and password, a text verification code will pop up, which may cause the password to be unrecognizable, thus prompting that the password is wrong.

It is recommended to try again at least 2 times. If you still can't log in, you can only change the password that the system doesn't know by retrieving it. In addition, you should also make sure that your account is secretly protected, otherwise you can only ask your friends to help you get your password back.