OK, after much effort, I was able to downgrade my OS to 3.1.2, downgrade my baseband to 5.13.04. fix the problems in Cydia, and start downloading ultrasn0w As soon as the download is done, Cydia asks me to Restart Springboard. So I click the button, and immediately the screen turns black and I get the "I'm busy shutting down for a restart" spinner in the middle of the screen. And it spins forever. Now what? Is that the expected behaviour? Is it doing something, or is this where I'm supposed to restart? The guides are utterly unclear on this. Ok so I've rebooted. Now is there a way to know if ultrasn0w worked? There's still no icon, is that correct?