- 1). Attach your iPhone to the computer via USB cable.
- 2). Open the iTunes program. Click the "Start" menu. Select "All Programs" and the iTunes folder. Click on the iTunes application to launch it.
- 3). Find your device on the left side of the screen after iTunes has opened. It should be called "iPhone" unless you changed the name.
- 4). Click on the device. A summary screen will open to a picture of your device and display the available free disc space.
- 5). Click on "Check for Update." The iTunes program will display whether your software is up to date or if an update available.
- 6). Click "Download and Install" if an update is available. Do not disconnect the iPhone until iTunes completes the process.
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