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In this video, I walk you through the entire process of updating, jailbreaking, and unlocking the iPhone 3GS from start to finish. I was running iOS 3.0.1 with baseband 4.26.08, and I updated it to iOS 4.0.1 that came with baseband 5.13.04.
Ian Brown owns and runs a mobile computer repair and tech service in Los Angeles, California.