How to Update Ipad/Ipod ios software

The iPhone 3GS+, 3rd and 4th generation iPod and iPad feature built-In AES 256 hardware encryption. This encryption must be properly enabled for it to work. Devices delivered with iOS 4+ are properly configured out-of –the box. Devices that have been upgraded to iOS 4 must be restored to properly enable the full hardware encryption. ................
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