I have a jailbroken IP4 and last night my phone went completely blank on me. So I had to put it in recovery mode and when iTunes detected it, it would only allow me to set up as a new IPhone. So it updated to 4.1 and I lost my jailbreak. My question is, I saved my SHSH and all so now can I use tiny umbrella to downgrade my software so I can rejailbreak? I know the baseband was updated so I can't unlock, but I can do this too jailbreak again??? Any info would be greatly appreciated. Thanks