Welcome to the forum kedarnathin
Ok well firstly I assume you are inserting the card the correct way up

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secondly, in the specs for the omega it states two embedded card slots, but fails to say what cam software is incorporated to work in conjunction with the slots. Are you able to tell from the menu? If it is not viaccess then that is why you channel will not descramble
Have you tried the other slots cards both ways up?