Unlocked iPhone users who got caught out when upgrading to 3.1.2 and where upgraded to the new 05.11.07 baseband quickly discovered that their phone didn’t work anymore.
Well now they can breathe a sigh of relief as they can finally unlock their iPhones again. Many thanks to Geohot for finding the exploit for it. You Blackra1n to unlock your iphone, its quite simple. iClarified have put up a guide here for PC and here for Mac. See the official release post from Geohot here
Many Thanks again Geohot!