So i rooted my phone, and flashed the latest 4.0.4 update. But now my phone no longer has SU access and i can't flash into recovery to install a new rom. So i tried to unroot my phone to re root and install the rom i want, but it won't let me unroot. I use a mac and use the mac method stickyed up above. Does anybody know what i can do in order to either restore SU permissions so i can flash a new rom or, how to fix the unroot problem. When i go to unroot it just says files can't be found. please help!!!