Error 3194 is an iTunes error that you may get when trying to install a firmware to your iPad, iPhone or iPod. This error indicates one of the following issues:
- You are unable to connect to iTunes server.
- You can connect to the server, but the ipsw version you are trying to install is not the latest version provided by apple.
- You (or a third part software) have modified the hosts file in your PC to redirect apple server requests to the Cydia server. Which does not have SHSH blobs for the version you are trying to downgrade to.
If you are trying to upgrade, then you must have gs.apple.com point to apple, otherwise you will get error 3194.
If you are trying to downgrade, you must have it point to cydia server, AND have SHSH blobs saved there (you must had version you are trying to downgrade to jailbroken, and opened Cydia on it). another option is to have these SHSH blobs saved on computer using tiny Umbrella.
To find out if you have one of the first two problems. open your browser and try going to gs.apple.com. You should get a 404 page inside apple.com, if you find yourself in Cydia then you will have to navigate to c:\windows\system32\drivers\etc\ and open the file called hosts. look for entries containing gs.apple.com.
Disable them with a hash if you need to connect to apple.
Another solution you may do is to use tiny umbrella, it WILL make error 3194 go away, but it may lead to a bad restore (black screen) after the restore is completed in case it didn’t have the correct SHSH blobs.