I have a jailbroken iphone 3gs which was running 6.1.2. I tried to update it to 6.1.3 in itunes (a mistake I know). I left it and came back 30 minutes later, to the device in recovery mode. First of all I tried a couple of things to get it out of recovery mode, like exit recovery in tinyumbrella, but nothing worked, so I went to restore it in itunes but first of all got the error message 3194. After trying the method of changing the host files I now am getting the error message 1600 or 1601 sometimes. I have tried to create custom firmware with snowbreeze, but nothing will work, I just keep getting an error in itunes. Please help!