It looks like the battle’s officially over between iPhoneSIMfree and the numerous unique groups of open source hackers trying to software SIM unlock the iPhone. Earlier this afternoon iUnlock, the first free, open source iPhone SIM unlock app, was released to the underground just 74 days after the iPhone’s release. Developed by the iPhone Dev Team, it’s not for the faint of heart and it takes a little longer than iPhoneSIMfree’s method, but it works.
To pull this off you’ll need iUnlock + nor + the .fls file, which is available in ZIPs all over. We’ve got the app here, but this package doesn’t include all of the files necessary. Good list of links here, or try here, here, here, here, and here.
For the how-to, just hit up one of those guides down below. Naturally, we offer zero guarantees that any of this will work. (Read: don’t whine to us if your iPhone gets bricked.) Big ups to the iphone.unlock crew, Draken, and, of course, the iPhone Dev Team. Let us know in comments if this technique works for you.