Unlock Your iPhone 3Gs on 5.0 Firmware! Works On 5.16.05, 5.15.04, 5.14.02 & 5.16.02 Basebands! Will unlock for Tmobile & other Carriers! If you are on 4.3.5, 4.3.4, 4.3.3, 4.3.2, 4.3.1, 4.3 or 4.2.1 & below this Video will show how to update to iOS 5.0 &