How can I downgrade iPhone 13 from iOS 18 to iOS 17?

I have gotten performance issues with iOS 18, since my iPhone upgraded on its own. And know its annoying to have those problems.


[Re-Titled by Moderator]

iPhone 13 Pro, iOS 18

Posted on Apr 21, 2025 04:23 PM

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4 replies

Apr 21, 2025 04:30 PM in response to S3bash

It has never been possible. With millions of devices currently running iOS 18, it may be best to explain the problems you are experiencing. For an iPhone 13 with performance problems, the first thing to check is the Battery Health at Settings > Battery Health & Charging > Maximum Capacity. If the battery is original, it is likely less than 80% which means it needs replaced. Also on that page is a section titled Peak Performance Capability which will have a message if the device has Performance Management applied that may slow down your iPhone to reduce shutdowns.

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How can I downgrade iPhone 13 from iOS 18 to iOS 17?

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