Error 3194, Error 17, or "This device isn't eligible for the requested build"
If iTunes can’t communicate with the update server, you may see one of these messages.
Error 17
Error 1639
Errors 3000-3020
Error 3194
Errors 3100-3999
This device isn't eligible for the requested build
If you see one of these messages and need help updating or restoring your iOS device, install the latest version of iTunes and try to update or restore again. If you need more help, follow these steps.
Check your hosts file
After you update iTunes to the latest version, check the hosts file to make sure your computer can contact the update server.
Error 3194, Error 17, or "This device isn't eligible for the requested build"
If iTunes can’t communicate with the update server, you may see one of these messages.
Error 17
Error 1639
Errors 3000-3020
Error 3194
Errors 3100-3999
This device isn't eligible for the requested build
If you see one of these messages and need help updating or restoring your iOS device, install the latest version of iTunes and try to update or restore again. If you need more help, follow these steps.
Check your hosts file
After you update iTunes to the latest version, check the hosts file to make sure your computer can contact the update server.
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