If you bought them about 6 months ago they are 99% clones, that is why we encourage our member to buy from Authorized Dealers. I don't know where you bought your receivers but i am sure it's not an Authorized Dealer, you probably saved a few bucks but you didn't get what you paid for. Those clone receivers would work with clone safe files but if you loaded original Pansat 2700 A files into them that will screw them up as original Pansat files have clone killer in them. Only thing you can do now is to keep trying loading Pansat clone factory file if that fails you will have to JTag. Here is a link on how to JTag a Pansat 2700
http://www.ftaprofessionals.tv/pansa...j-tag-kit.html