- 1). Plug the provided USB data cable into the power port on the bottom of the iPhone 2G, then connect the other end of the cable into a USB port on the computer system. iTunes automatically opens once it detects the phone. If you don't have iTunes installed, you can obtain it for free from iTunes.com.
- 2). Select the iPhone 2G under "My Devices" on the left side of the screen. This loads a window with all the data saved on the phone.
- 3). Choose the "Upgrade" option in the middle of the screen. iTunes will download the most up-to-date version of the IOS to the computer.
- 4). Select "Sync" and the new internal operating system will upgrade directly onto the phone.