1.
Enter your master four-digit pin number, "#", "2", enter your
2nd four-digit pin number, enter it again, then "#".
2.
Enter your master four-digit pin number, "#", "3", enter your
3rd four-digit pin number, enter it again, then "#".
3.
Enter your master four-digit pin number, "#", "4", enter your
4th four-digit pin number, enter it again, then "#".