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

Fixes for Your iOS 9.2.1 Problems

If you do run into a problem on your iPhone 4s, you don't need to rush down to the Apple Store to talk to a Genius. There's a good chance you'll be able to fix the problem yourself. 

We've put together a list of fixes for common iOS 9.2.1 problems and that's the first place to look if you run into trouble with your new update. Our list includes fixes for battery life woes, performance issues, Wi-Fi problems, and more. 

If you don't find a solution there, and you might not, be sure to check out our list of additional resources for iOS 9.2.1 problems.