How to Downgrade iOS 26 to 18

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Level 1

23 points

How to Downgrade iOS 26 to 18

Hello everyone,

I recently accidentally upgraded my iPhone to the iOS 26 developer beta. After using it for a few days, I found that the system has many new features. Unfortunately, my device is relatively old and not suitable for the latest iOS26 system version. Now I still want to roll back to the official version of iOS 18 that I am familiar with.

I have been using iOS 26 for about two days, and there are still many things that I am not used to. Can anyone share a clear, step-by-step downgrade method to restore my device to iOS 18 without losing important data?

Thank you in advance for your guidance or recommended tools!

iPhone 11 Pro

Posted on Jun 11, 2025 07:32 PM

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Answer 1

Top-ranking reply

lobsterghost1

Community+ 2025

Level 10

174,787 points

Jun 11, 2025 07:36 PM in response to CC0012-

Accidentally? Really?? It's hardly easy or accidental to have installed the developer beta. Since you're a developer, you must have known you needed to create an Archive Backup on your computer before you updated right? If you didn't, yes, you can go back to the public release of iOS 18.5, but you will have to use your computer to erase the phone and if you didn't make an Archive backup, you're going to lose ALL the data on your phone.

See what you need to do here --> How to uninstall iOS or iPadOS beta software - Apple Support

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Answer 2

Jun 11, 2025 07:46 PM in response to CC0012-

check this☝ tool and this👇articale to see if that helps.

How to uninstall iOS or iPadOS beta software - Apple Support

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Answer 3

Jun 11, 2025 07:40 PM in response to CC0012-

Can anyone share a clear, step-by-step downgrade method to restore my device to iOS 18 without losing important data?

Apple's instructions are in the link below, but you are going to lose all of the data on your Phone when you revert to iOS 18.....unless....you made a separate "archive" backup on a Mac or PC.....before.....you installed the beta software.

How to uninstall iOS or iPadOS beta software - Apple Support

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