Apple Stops Signing iOS 18.1.1, Downgrading No Longer an Option

Apple has stopped signing iOS 18.1.1, preventing iPhone users who have upgraded to iOS 18.2 from downgrading to that version of iOS. Apple released iOS 18.2 a week ago on December 11.

ios 18 1 1 security feature
Apple often stops signing an older version of iOS, usually within a week or two after a new version is released. When an update is no longer signed, it can't be installed on an ‌iPhone‌ due to a server-side software verification check.

This policy encourages users to keep their operating systems up to date, ensuring they have the latest security enhancements. Apple also stopped signing iOS 17.7.2 on Wednesday.

The iOS 18.1.1 update provided important security fixes, but no other notable changes. In contrast, the iOS 18.2 update brought several new Apple Intelligence features to compatible iPhones. You can find all the details in our comprehensive guide.

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Top Rated Comments

contacos Avatar
5 hours ago at 04:47 am
Thankfully I was able to go back to iPadOS 17 on my iPad Air 4 by using an iOS 17 beta that was still being signed for some reason because it got unreasonable slow on iPadOS 18.
Score: 4 Votes (Like | Disagree)
Villarrealadrian Avatar
3 hours ago at 07:22 am
This should be illegal
Score: 3 Votes (Like | Disagree)
nickelro Avatar
4 hours ago at 05:39 am
They actually stopped signing it since yesterday.
Fingers crossed they will release 18.2.1 soon enough to correct the blue / red mess in photos while shooting in night mode at 30 sec exposure with the stock camera app. I won't hold my breath though.
Score: 2 Votes (Like | Disagree)
coffeemilktea Avatar
5 hours ago at 05:15 am
As long as Genshin Impact works flawlessly on the current version of iOS, I see no reason to downgrade. :cool:
Score: 1 Votes (Like | Disagree)
BornAgainMac Avatar
5 hours ago at 04:57 am
The only time I wanted to downgrade was to save some 32-bit apps and games that had no other equivalent available and the developer ghosted.
Score: 1 Votes (Like | Disagree)
winxmac Avatar
5 hours ago at 05:03 am
Downgrading to iOS 17.6 beta is also no longer possible so no other way but to move forward...

The iPhone 11 Pro Max I purchased was running iOS 17.7 so I did not have to downgrade [iOS 18.x to iOS 17.6 beta], however, updating to iOS 17.7.x OTA is no longer possible... I'll just keep it on iOS 17.7 as long as possible...
Score: 1 Votes (Like | Disagree)