I've got 7 different DNA C mods (4-75's & 3 250's) and I've never had this trouble before. I've gotten the "REPLAY" mode to work on them all except this one. I followed the same instuctions on the youtube video with the guy using the VT75c where he explains everything well and even used his links again. I restored defaults 4 or 5 times and re-installed eScribe 2.0 a couple times as well. Applied service packs as well every time and still it tells me that "Boost mode & Replay mode are only for international firmware and not the U.S. firmware." Has something changed? Am i missing something? I would absolutely love some assistance with this problem please :()