If you run into Error 3194 within i Tunes when you are trying to restore your i Phone, i Pad, or i Pod touch, you can fix it by temporarily blocking Apple’s firmware signing services.
Follow this guide to install Ultrasn0w to software unlock your i Phone 3G.
But it helps you to hactivate your i Phone without the need to hack your i Phone.
Sherif had also discovered an exploit in the baseband () that was bundled with i Phone OS 3.1.3 earlier in the year.
This is an essential step otherwise you may encounter future errors when trying to update or install i OS versions.
Note that i Tunes Error 3194 can also happen sometimes if the wrong firmware version is used, and you will see an error message like “This device isn’t eligible for the requested build”, which is why it’s necessary to always use the appropriate firmware files for your device if you are performing manual updates.
If you rather want to start from scratch, download Pwnage 3.1 tool for Mac.