The method involves using Copy Trans Shelbee which is compatible with all i OS devices including the i Phone 7 and all i OS versions including i OS 10.
Adding a passcode is the usual route taken to increase the security of your device.
Error 3194 seems to usually be triggered when unsigned or expired firmware is used, often during an i OS downgrade or upgrade, or even during some restores.
If you experience the error on your i OS device, here’s how you can quickly resolve it so that i Tunes will function with the restore or i OS update as intended.
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.