So here is my situation. I had 4.3.2 and felt my iphone was running slow. I figured I would upgrade to 4.3.3 and re-jailbreak but 4.3.4 was already out. Itunes said I something about not being eligible for the version. So I went into DFU mode to do the update with a mod to the host file to bypass Apple's servers so that I can do the update (different IP for gs.apple.com). The process kicks off. Itunes says restoring iphone software and the progress bar goes but goes faster than the progress bar on my phone. It finishes and says verifying iphone software followed by verifying iphone restore. The progress bar on my phone stops about 2/3rds of the way. Then Itunes says restoring iphone firmware and kills the whole process. How can I get 4.3.3 to install without these issues? My phone is stuck in DFU mode, and I think that is because the software didn't install.