Hi all, After using Android for several years I've become nostalgic for the iPhone 3GS. Although I've jailbroken many times, I haven't ever had to jailbreak an older device well after the community has moved onto bigger fish. I am on T-Mobile now though so I was hoping I could unlock my device, update it to 6.1.3 and retain the baseband but I'm not certain what the best route would be. Facts: iPhone 3GS black SN: 849466xxxx (made in 09? so later than xx134...? safe to flash?) Baseband is 05.16.02 iOS firmware is 4.3.5 (8L1) 1) Is it safe to update my iPhone to the iPad baseband 06.15.00 and then downgrade to a GPS functional version (without bricking the baseband)? 2) Should I update to 6.1.3 first and then attempt to unlock and tweak baseband version or try to unlock/tweak and then preserve baseband and update to 6.1.3? Is that even possible as I heard iOS 6 corrupts your baseband upon upgrading? I would have preferred Whited00r 7 but it seems that the team has not began support for the 3GS and has no plans to. Thanks.