Shanghai traffic police have not issued the verification code of electric frequency car license plate.

The reason why Shanghai traffic police have not issued the license plate verification code for electric frequency cars may be:

1. Incorrect mobile phone number: Please make sure that the mobile phone number you entered is accurate and the mobile phone is in a normal signal state.

2. SMS is blocked: Sometimes the SMS verification code may be filtered out by the spam interception function in the mobile phone settings. Please check your phone settings to ensure that SMS notifications are not blocked or blacklisted.

3. SMS delay: SMS may arrive late due to network or operator problems. Please wait patiently for a while to see if you will receive a verification code message.

4. Repeated requests failed: If you still can't receive the verification code after repeated attempts, you can try to register with other mobile phone numbers or contact relevant departments for consultation.

5. Mobile phone number problem: If you use a virtual number or can't receive the verification code of websites such as banks, I suggest you try a real number.

The above information is for reference only. If the problem still cannot be solved, it is recommended to consult the local traffic police department.