Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

How can I downgrade iOS 5 to iOS 4.3.5?

I really regretted upgrading my iOS 4.3.5 to iOS 5..

iPhone 4, iOS 5

Posted on Oct 28, 2011 5:41 AM

Reply
6 replies

Oct 29, 2011 3:48 AM in response to Yuan1789

As far as I know, once you upgrade your OS you can't revert to a previous version (easily at least).


iOS 5 should work absolutely fine on your iPhone 4.


If you are experiencing issues, try restoring your iPhone and perform a clean install of iOS 5 to see if that helps. If it doesn't help, book an appointment with an Apple Genius at your local Apple Store and let them look into the problems or issues you are experiencing.


I don't know for sure, but they might be able to either fix the issue or they may be able to revert back to iOS 4.3.5 for you.

How can I downgrade iOS 5 to iOS 4.3.5?

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple ID.