I downloaded a (.ipsw) , and it takes a long time. now I connect the my iPad to my PC and tried the manual update. holding down the shift key and click the restore iPad button. I select the file I downloaded and then hit update. my iPad restart and then there is the iTunes logo in the middle of the screen and also a cable coming from the bottom of the screen. I was happy for a moment and then there is this 3194 error comes up. I know the problem begin when the iTunes try to connect to the server and then something goes wrong. Now I can't even back to my old ios 7. Is there any way to install my .ipsw into my iPad without even opening the iTunes.