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iOS 5 update and Error 3194 and Jailbroken iPhone

If you have a jailbroken iPhone and the jailbreaking was done with the same computer that you are trying to update the firmware from, then you may get a error 3194 when iTunes tries to verify the firmware version. To solve this:

  • Open C:\Windows\System32\drivers\etc\hosts with notepad
  • See if there are any lines in there that contains a reference to
  • Put a ‘#’ (without quote) in front of such line(s)
  • Try updating again

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