Here is the story: I used redsn0w with a brand new 4.3.3 iPhone that my friend just got from the apple store, because he bricked the other, but they were nice enough to give him a new one. I downloaded the 4.3.3 ipsw and selected the options install cydia and install the iPad baseband (he's on tmobile so he needs it unlocked). Everything went fine until we launched cydia and it kept saying it was preparing the file system, for over 20 minutes. So I shut the phone down and turned it back on.. same thing... Then i attempted to go through redsn0w again but only use the install cydia option. This seemed to go ok until the phone began to attempt to start and never started. Now the phone simply tries to boot but never actually does. It can still get into DFU mode. If I try to put a custom IPSW on it, I go through redsn0w to get it into DFU then go to iTunes, and iTunes does not let me, it gave me the 3149 error on windows and a generic one on my mac. I have tried to change the host file and that does not work. I am running Lion, but I have tried it on Windows 7 as well. I have also tried these methods: http://everythingapplepro.net/?p=221 http://www.lovefortech.com/2011/05/1...ken-ios-4-3-3/ http://www.redmondpie.com/downgrade-...utorial-guide/ I tried to use tiny umbrella as well but it will not recognize the device or list any of its specs. When its in dfu i pressed fix recovery and at one point the phone gave me this screen: http://i53.tinypic.com/9u3oub.jpg I tried unchecking the set hosts to cydia on exit box and that did not make iTunes budge. I have tried this on windows and Lion. Do you guys have an thoughts or suggestions? Maybe I'm doing something wrong? If anyone has insight or solution to this problem Could you list it out step by step on what I should do? I just want to make sure I do this right if there still is a way to fix it. At the moment the phone is stuck on trying to boot over and over again.