sorry to bother u guyz but i need urgent help can someone please help me? i would really appreciate it. ok heres my question i got 2 pansats one pansat 2700A and one pansat 2700ir my first question is 1. what is the diffrence between these two? IR and A. second question is 2. can i do a b-75 upgrade without j-tag on these receivers so that i can get autoroll files in them. because every autoroll file i try to look for the are all b-75 updated only no regular ones 3. can i update the 2700A and 2700ir receivers with to b-75 and if i do will i be able to get autoroll in it? thanks again guyz appreciate ur help!!(hope i explained well, need more info let me know) thanksssssssssss