iPhone 4s iOS 9.2 Update: 11 Things You Need to Know

You Can No Longer Downgrade to iOS 9.1

We had a feeling Apple would stop signing off on iOS 9.1 one to two weeks after the release of iOS 9.2 and that's exactly what's gone down.

Apple is no longer signing off on iOS 9.1 which means that once you make the move to iOS 9.2 (or if you've already moved to iOS 9.2), you're stuck there. 

And because you no longer have this mobility, you'll want to be extremely careful with iOS 9 and the iOS 9.2 update. Apple won't open the downgrade back up.