So In anticipation of giving a iPhone 3G to a friend, I decided to wipe the phone clean and restore it to iOS 4.0 (with potential to later jailbreak it). However, when I do attempt to restore with the 4.0 .ispw, I am met with the following: "The iphone iphone could not be restored. The device isn't eligible for the requested build." Any help would be appreciated. Thank you!