thatfellow
I have tried your suggestion... lets see how long it goes working well. I will you feedback in the next days. Many thanks.
I give up... :(
It worked well for 1 and half day, but after it the omnikey reader went again to the situation of not properly retrieving the ECM from the card.
I'm going back to smargo since with it I do not have any problems with Oscam+Nagra3 card.
Many thanks for the suggestions.