**** i'm an idiot. i accidentally clicked erase all content and settings and now when the phone tries to erase everything, it's stuck on the Apple logo with the spinning loading thing. i forced shut down and started it up, but it keeps doing the same thing. need help... it was running 4.0.1 edit: i was able to get it loaded in iTunes. what's the latest version i can install that apple is still signing that's unlockable?