I'm very adept at jb'ing, but this one has got me puzzled. My gf's old 3GS which was on 4.0 showed the "connect to itunes" pic one day, so I tried restoring it. Tried redsn0w, and it didn't work. Long story short, I had to use pwnage to create a custom 4.3.3 ipsw, then redsn0w to put it into DFU mode (regular way WOULD not work), then tinyumbrella to get itunes to restore w/ the custom ipsw. Here's where it goes strange ....as soon as it gets done restoring, it boots into DFU mode. I've tried redsn0w and tinyumbrella to get it out of dfu, but nothing works. The only way I can boot, is to have redsn0w do a tethered boot. Any suggestions?