i just bought a brand new pansat 2700a(b75) now do i have to download the factory bin B75_121 first before downloading the autoroll B_75_208 bin? and do i even need the factory bin? and does it matter what loader to use cuz i see 2 different loaders the X-87BL and the GTROM loaders even thu they both are V27.02? and is there any kind of cable or adabter i can use to connect my receiver to my laptop?