Whenever i try to jailbreak using redsn0w it just hangs at waiting for reboot, and my iphone reboots normally, i know that there have been many other threads about this, but none of the tips said have worked, im running 5.0.1 firmware on an iphone 4 with a windows 7 starter laptop, i've tried pointing to the ipsw, tried a different computer, i've even tried using sn0wbreeze to do it untethered, so i can install the corona package later, but the itunes just said the firmware is not compatible. I don't think it is me, but my iphone, because i tried my friend's iphone that was running the same firmware, doing the same thing and it went off without a hitch, what should i do?