How to downgrade from iOS 26 to iOS 18 on iPhone?

can i change latest ios 26 back to iOS 18. I hate 26


[Re-Titled by Moderator]

Original Title: iOS 26

iPad Air, iPadOS 26

Posted on Jan 26, 2026 2:02 PM

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Question marked as Top-ranking reply

Posted on Jan 26, 2026 2:03 PM

Apple has never supported downgrading from one production version of iOS to a previous one.


If you have already updated to iOS 26, you cannot go back.

4 replies

Jan 26, 2026 4:05 PM in response to Gallaghersurname

Rolling-back to an earlier version of iOS/iPadOS is not possible. All System Updates are digitally signed by Apple - and can only be installed whilst the digital signatures remain valid. After release of a new iOS/iPadOS version, the immediately preceding version continues to be digitally signed by Apple - however, usually within a few days, Apple will revoke the digital certificate with which the earlier version is signed.


Perhaps consider that iOS/iPadOS updates include both functional and essential security updates. Restoring an earlier version of the OS would expose your device, privacy and data to emerging and known security threats and vulnerabilities.


Perhaps you dislike the new Liquid Glass appearance - this being a common complaint levied by those new to iOS 26.x...


iOS 26.1 introduced a new setting that subtly charges the appearance of Liquid Glass:

Settings > Display & Brightness > Liquid Glass - select Clear or Tinted


Sadly, this new setting makes very little difference for those that struggle with both the appearance and overlapping screen elements introduced with Liquid Glass.


If you are unhappy with the new Liquid Glass UI, there are other settings that can significantly improve the appearance and suppress the majority of unwanted effects:


  1. Settings > Accessibility > [Vision] Display & Text Size > Reduce Transparency - set to ON
  2. Settings > Accessibility > [Vision] Display & Text Size > Increase Contrast - set to ON
  3. Settings > Accessibility > [Motion] Reduce Motion - set to ON


Each if these settings can be used individually, or in combination. Setting Reduce Transparency alone (1) will likely suppress the majority of your issues. The Reduce Motion setting (3), if used, will eliminate the "lensing" effects of the Liquid Glass UI. Experiment; you should find a combination that works for you.


I suggest that you begin with setting Reduce Transparency to ON - and then, if needed, experiment with additional use of one or more of the other options.


NB: The new Display & Brightness > Liquid Glass setting can only be changed/toggled while Reduce Transparency is set to OFF. You might find that setting Liquid Glass to Clear, prior to enabling Reduced Transparency to ON, may give the best result.



Jan 26, 2026 3:26 PM in response to Gallaghersurname

I would like to add that you can minimize the effects of Liquid Glass this way: 


Reduce Liquid Glass Effect: Fortunately, you can adjust this effect if you want. You can tweak how transparent your iPhone looks. Here's how:

  • Open the Settings app.
  • Scroll down and go to Accessibility.
  • Tap on Display & Text Size.
  • Turn on Reduce Transparency


This user tip should be helpful. 

Liquid Glass - Love It Or Hate It - It's … - Apple Community

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How to downgrade from iOS 26 to iOS 18 on iPhone?

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