Unpaired card is one that has never been put inside the original dishtv stb. IF you have used your card in the dishtv stb then it wont work with dreambox.
So For Dreambox use a new Card and a tricks for unpaired "Replace Your Card From Dealer , Say to Dealer "My Card is lost and given number 015000xxxxx, and dealer given U New Card this is unpaired card, don't use in your Dishtv Stb and Putin your dreambox 500s Turn on the CCcam emu. and put the channel Zee news.
Wait 15-20 minutes initially .. dont change the channel.
It will start decoding.
This way you will be able to open conax channels only.