My Design Master 11 will not take the pin number. It's for Graphtec Craft Robo Lite CC300-20/CC330-20.
If you have issues with the serial number, then you have to contact the one you've purchased it from. If the Design Master 11 was purchased through the this website, then they are entitled to offer support regarding your purchase.
Access the contact page using the following URL: http://www.graphteccorp.com/contact/index.html
