If you’re on iOS 4.3.2 and fancy taking a joyride on another company’s network besides the one you are indentured to, good news: the iPhone Dev Team has released Ultrasnow 1.2.2, which will allow you to unlock iOS 4.3.2 on both the iPhone 4 and on the iPhone 3GS.
If you’re on the 3GS, you’ll need to be both jailbroken and on the 06.15.00 baseband, which is easy enough to do… *cough*.
Once accomplished and rocking either an iPhone 4 or an iPhone 3GS with baseband 06.15.00 restored, you’ll need to preserve the old baseband and grab Ultrasnow through Cydia. The process is a bit complicated, and sometimes results in test participant implosion, so follow this tutorial for a walkthrough on getting through the carrier unlock process safely.
John Brownlee is a writer for Fast Company, and a contributing writer here at CoM. He has also written for Wired, Playboy, Boing Boing, Popular Mechanics, VentureBeat, and Gizmodo. He lives in Boston with his wife and two parakeets. You can follow him here on Twitter.
