Hi, I'm using Windows, and I can't seem to get my iPhone 2G unlocked on 3.1.2 or any 3.X.X firmware. I have downloaded different custom firmwares that have already been unlocked, but my phone will not restore itself whether in DFU mode or Recovery mode. I keep getting Error 16XX. For now, the iPhone is just showing the activation screen, as I have given up. Any help is greatly appreciated.