Hi all. Had a jailbroken 3GS on my phone with 4.0 and used jailbreakme.com. So I downloaded a bunch of awesome apps for jailbroken phones (spent close to $100.00) and then had phone freeze up a few weeks later. The only way I could get phone to work was to restore in itunes and it made me upgrade to 4.1-jailbreak gone.... So I would like to downgrade back to 4.0. Is there a way to do this? I did not save any of the files or anything (I don't know how) but did recently read about recboot and tinyumbrella, so would not make that mistake twice. I understand that the Greenpois0n jailbreak won't work on the 3GS so now I'm pretty bummed....... Anyways, is there ANY possible way to go back and rejailbreak?