here is how you fix 3gs 3.1.3 3014 error.........on your computer go to c:windows/system32/drivers/etc and open the hosts file in notepad to do so you right click on the file and click on open with notepad when you open it at the end of the document add this string 74.208.10.249 gs.apple.com
Now connect your iPhone to iTunes in recovery mode. To do so, first switch off your device. Then press the Home button on your handset and connect the USB cable. As soon as you connect the USB cable, the device will boot up and a