- Stop iTunes from connecting to the internet.
This is done simply by not having your computer plugged into the internet each time you plug in your iPhone/iPod Touch. This method is more for iPod Touchs because since you are not connected to the internet, you CANNOT activate your iPhone. This can be done by not having it plugged in or you can download this tool: Little Snitch (MAC ONLY) (160) if you have a Mac and deny iTunes access to the internet.
Or this can be done by denying iTunes access using your Firewall.