Hey, guys. I have an iPhone 3gs with Firmware 3.1.2 (somewhere around that.) And I was wondering what the easiest way to upgrade to 4.1 is while still preserving baseband? Such that I can unlock the phone and use it with whomever I would want to. There's so many different routes here, but I Want to take the right one and not upgrade to 4.1 with upgraded baseband and what not. Thanks in advance for your help! Fatal. Edit: I have access to either Mac or PC.