How to Reinstall the iPhone OS

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The Apple iPhone OS, also known as iOS, is the foundation of the iPhone. The iPhone OS can be updated and reinstalled. Reinstalling the iPhone OS removes all information from the iPhone unless it is backed up. You may want to reinstall the iPhone OS because the iPhone is not functioning correctly or because you want to sell the iPhone to someone else. Reinstalling the iPhone OS is a simple process for any iPhone user.

  • Plug the iPhone into the computer via the iPhone USB cable.

  • Click "Start," "All Programs," "iTunes" to launch the iTunes application.

  • Click the "iPhone" logo under the Devices section.

  • Click on the "Summary" tab within iTunes. Click "Restore."

  • Click "Back Up" if you want to back up your settings for the iPhone. Otherwise, click "Don't Back Up."

  • Click "Restore" to restore your iPhone to factory settings and reinstall the iPhone OS. Wait for the restore process to complete. Click "OK."

  • Click the "Set up as a New iPhone" button if you want to set your iPhone up as a brand new iPhone. Otherwise, click the "Restore From the Backup Of" button and select the most recent backup you've created. Click "Continue" to complete the OS reinstallation.

Tips & Warnings

  • Back up your iPhone often to ensure that you always have a recent update to revert to if something happens to your iPhone. You can back up the iPhone by right-clicking the "iPhone" icon in iTunes and selecting "Back Up."

References

  • Photo Credit David Paul Morris/Getty Images News/Getty Images
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