I just removed the USB cable from the iPhone and reinserted it back at once. It worked, the jailbreak was succesfull - I tried this with two iPhones and I had the same problem which got solved with the same solution.
Although this worked for me, there are no guarantees it will work for you; I bear no responsibility if you break your iPhone!
I got some other tips if this one not work
ReplyDeletehttp://www.ryan-isra.net/2009/09/tips-if-your-iphone-stuck-waiting-for-reboot-using-redsn0w-2/