Does anybody else think it s hard to get this file updated to a smarty 67. I have a buddy that bought an 08 cummins and deleted all the egr and dpf. He bought a smarty and ask me to update it because he couldn't figure it out. So I have been messing with it for a week now and I am in the same boat. Everytime I get the file in the smarty downloader it say file not compatible with smarty. I am about to throw this thing out the window. Anybody that could help would be wonderful before I owe this guy a new handheld. :lolly::nail: Also I am running windows 8