How to Fix 3194 Error For Update To iOS 5.0.1

Many of us faced problems when updating to version iOS 5.0.1 and did not know how to solve them, and still faces many problems even now, so we decided to develop a solution to these problems for you.

1. Edited to the Hosts file and delete this line 74.208.10.249 gs.apple.com From it
2. delete the file Hosts.Umbrella
3. put the device in DFU mode
4. Open iTunes and just click Restore.