I had 4.3.3, I upgraded to 4.3.5, and that's when the trouble started. I shouldn't have done the 3.5 update but I wanted to try out Greenpois0n, so here's my problem. I put it in DFU mode, and iTunes can't recover it because it has to be in recovery mode. I've tried iREB's recovery fixer, I've tried jailbreaking it using Greenpois0n and the Greenpois0n Apple shows up and the screen goes blank, and I've tried to just boot tethered in Redsn0w. I have saved SHSH blobs. So basically, I did a downgrade on iTunes and I got 10XX error, and now I'm in DFU mode and I can't get out. Any help?