iPhone 6 iOS 9.2.1 Problems
Know that there are iPhone 6 iOS 9.2.1 problems. We haven't seen or heard about any widespread issues but you'll still want to take note, especially if you haven't installed the iOS 9.2.1 update yet.
This is precisely why we recommend doing prep work before you install the iPhone 6 iOS 9.2.1 update. A little preperation will go a long way toward preventing issues with this new update.
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