Go back to the local armed forces. There are information errors in military archives, which should be handled by the local armed forces department:

1. Letter of introduction issued by the army.

2, go back to the local armed forces department for preliminary examination, according to the error message.

3. Show relevant certificates in the township or village community where the household registration is located when enlisting.

4. Take the certificate back to the county armed forces department.

5. After being stamped by the Armed Forces Department, it can be brought back to the army for filing.