After replacing the SIM card, the unique identifier (IMSI) of the new card was not synchronized to the enhanced information platform in time, which led to the failure of the enhanced information login. In order to ensure that your private information will not be leaked, the mobile phone will temporarily close the login request for enhanced information after three attempts. This is not a mobile phone fault, please feel free to use it. Re-open the login request method: click information > more > settings, select enhanced information, and open the login request.
Solution:
You can call 10086 to inquire about the login failure after changing the card.