MJScore

I burned a copy of a CNDV-80MT West ISO. I put it in my N3 and it updated the firmware. I thought everything was fine but when I went to use the navigation it said insert the appropriate disc. Now my navigation part will not work. I even tried to put back the CNDV-60 disc but it says the same thing. Now what can I do? I thought that this was the west map disc. Help!!