When you log in to the Yu ID, if an error “Bad Message 431” is displayed and you cannot log in, you may be able to log in by removing all the cache (cookies) from the browser you are using to log in to the Yu ID.
When you log in to the Yu ID, if an error “Bad Message 431” is displayed and you cannot log in, you may be able to log in by removing all the cache (cookies) from the browser you are using to log in to the Yu ID.