Don’t be panic, you have chance to downgrade from i OS 11 to i OS 10.3.3/10.3.2 by using Rei Boot Pro.
By downloading the compatible IPSW file automatically from Apple, you can uninstall i OS 11 and go back to i OS 10 with several clicks.
Restoring your i Pod erases all of its data and settings and returns it to the state it was in when you first got it.
After it's been restored, then you can update the operating system.
This problem can be overcome by following these simple steps on your windows/mac. Finally, plug in your i Phone, i Pod or i Pad into your PC again and start the i Tunes software. Now try updating or restoring your i Phone, i Pad, i Pod using i Tunes software.
This time you will be able to successfully do it without getting i Tunes error 3194.
It is much easier than using i Tunes and 100% risk-free.
Even after trying out the above simple steps if you are still getting the error, then follow the below two methods that I’ve successfully used.
So naturally, all the signing is already done with so if you’re trying to downgrade to i OS 6.1.3 or lesser after an upgrade to i OS 7, you’re going to have a bad time.
And when you’re dealing with a jailbroken i Phone, it’s going to be even worse.
Support latest i OS 11 beta 7, pubilc beta, beta 6/5/4/3/2/1, i OS 10.3.3/10.3.2/10.3.0 2.
Support new Special Edition (PRODUCT)RED i Phone 7 and i Phone 7 Plus 3.