It will automatically tell you what version you are on.ĥ.
Open up iTunes and make sure you are running the latest version. iPad CDMA, WiFi, or GSM.) How to determineĤ. You will need a computer, as well as the latest version of iTunes.ģ. iOS 6 is compatible with: iPhone: -iPhone 3GS. Ensure your device is connected to a power source.Ģ. NOTE: If you don't have iOS 6 beta 2, you may skip this step. Quickest Way to Update If You Have Beta 2.