How do I downgrade from iOS 27 to iOS 18 on iPhone?

I freaking installed iOS 27 and I can’t FREAKING DOWNGRADE TO IOS 18




[Re-Titled by Moderator]

Original Title: hi (:

iPhone 13, iOS 27

Posted on Jun 20, 2026 8:02 AM

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Question marked as Top-ranking reply

Posted on Jun 20, 2026 8:08 AM

Hello 👋


You cannot downgrade to iOS 18 because it's not signed anymore but you can downgrade to iOS 26 if you want by following the steps in this article : How to uninstall iOS or iPadOS beta software - Apple Support (CA)


After you restart your iPhone, if you used iCloud backups, make sure to setup your iPhone without using Quick Start (otherwise your backups from iOS 26 might not appear)


I hope this helps, that said, have a nice day 

37 replies

How do I downgrade from iOS 27 to iOS 18 on iPhone?

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