Good day all, I am new to this Forum, and hope that I find the solution to my problem here... Before I state my problem, I think it is good to say what systems I am using: iPhone 4, firmware 4.2.1 Mac OS X 10.6.5 iTunes 10.1.1 (4) I have an iPhone 4, I updated it to 4.2.1 when released, then I jailbroke it using redsn0w 0.9.6b4. Everything was fairly fine until the untetherd jailbreak redsn0w 0.9.7b3 was released, I decided make my iPhone become untethered unfortunately without reading anything about backing-up SHSH blobs, so I used it and crushed everything. I tried to go back to what I had, but couldn't do that. Now I have my iPhone restored through another hustle. Now if possible I need to re-jailbreak my iPhone again using the new untetherd jailbreak.