10 Things to Know About the iPhone 4s iOS 9.2.1 Update

You Can No Longer Downgrade to iOS 9.2

If you decide that you hate iOS 9.2.1, you're stuck. There's no way to drop back down to the iOS 9.2 update or anything older than that. 

Apple's no longer signing off on iOS 9.2 which means you can no longer take advantage of a loophole that at one point allowed iPhone 4s users to downgrade back to iOS 9.2.

For next time, we've outlined the downgrade process here.