How-To

How to upgrade to iOS 9 (and, if you need to, reinstall iOS 8)

Ready for the new version of iOS? Here's how to install it on your iPad, iPhone, and iPod touch. And just in case, we also tell you how to revert back to iOS 8.

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Roman has covered technology since the early 1990s. His career started at MacUser, and he's worked for MacAddict, Mac|Life, and TechTV.