MY Iphone got stuck in dfu mode as I was trying to restore a snowbreeze ipsw and when my iphone showed the snowbreeeze icon itunees popped up an error and my iphone is bricked! PLEASE HELP ME TO SOLVE THIS ISSUE!!!!!
I USE an iphone 4 i tried to restore using 4.3 ipsw to an ios 5 jailbroken phone and now after 75% of the restore takes place in my iphone and itunes showed an error 20 or 11 and now my iphone is stuck in dfu mode which is only recognised by itunes !PLEASE HELP!!!

You're going to need to provide a little bit more information:

1) What kind of iPhone? "iPhone" is not nearly descriptive enough
2) What version of iOS were you restoring?
3) Were you blocking the baseband update?

Error 20 usually indicates that you're attempting to restore a custom firmware and are not in Pwned DFU mode -- you say you were in DFU, but depending on your phone model, iOS revision you were restoring to, etc., you may need to use Pwned DFU mode instead.