I have an Iphone 4 Jailbroken on 4.2.1 now I want to update the firmware to 4.3.1 and just restore to remove the Jailbreak. As I try to update/restore on itunes, it tells me give me the following error: The iphone cannot be updated because the iphone software update server could not be contacted or is temporarily unavailable. I have tried to update/store on another computer without success. I have no connection issues to the internet, my OSX and Itunes versions are all up to date. I have searched many boards for resolutions but none have worked. Anyone's help is greatly appreciated.