Apple Stops Signing iOS 17.2.1, Downgrading No Longer Possible

Apple today stopped signing the iOS 17.2.1 update, preventing iPhone users from downgrading to that version of iOS going forward. iOS 17.2.1 is no longer being signed following the January 22 release of iOS 17.3, which introduced Stolen Device Protection for the ‌iPhone‌ and other changes.

iOS 17
It is not unusual that iOS 17.2.1 is no longer being signed. Apple routinely stops signing older versions of iOS after new releases in order to encourage customers to keep their operating systems up to date and to prevent users from downgrading to older, less secure versions of the ‌iPhone‌ operating system.

Along with iOS 17.2.1, Apple has stopped signing iPadOS 17.2 for the iPad, and the older 15.8 and 16.7.4 versions of iOS and iPadOS for devices unable to run iOS 17.

Apple is already testing iOS 17.4, a major update that is set to come out in March.

Top Rated Comments

lkrupp Avatar
3 weeks ago

Ive never downgraded ios… i wonder what percentage of users do…
Almost no one
Score: 5 Votes (Like | Disagree)
Populus Avatar
3 weeks ago
I would have liked to install iOS/iPadOS 16.7.4 on my devices, but… my devices are able to run iOS/iPadOS 17, so Apple didn’t allow me to install those iOS/iPadOS 16 patched versions.
Score: 4 Votes (Like | Disagree)
AlastorKatriona Avatar
3 weeks ago

Ive never downgraded ios… i wonder what percentage of users do…
No one does, and I have no idea why Macrumors runs these articles as if its some kind of important PSA. No one cares. No one should care.
Score: 3 Votes (Like | Disagree)
CheffyDude Avatar
3 weeks ago
Why not? We should be able to run whatever version of iOS we want.
Score: 3 Votes (Like | Disagree)
CheffyDude Avatar
3 weeks ago

what if someone wanted to run a 12 year old version of iOS? Are the developers supposed to just perpetually provide security updates for prehistoric versions of iOS that are no longer optimized and lack several features?
Yes.
Score: 2 Votes (Like | Disagree)
Fuzzball84 Avatar
3 weeks ago
Ive never downgraded ios… i wonder what percentage of users do…
Score: 1 Votes (Like | Disagree)

Popular Stories

iOS 17

iOS 17.4 Will Add These New Features to Your iPhone

Monday February 19, 2024 6:52 am PST by
Apple last month confirmed that iOS 17.4 will be released in March, and the update includes several new features and changes for the iPhone. Key new features in iOS 17.4 include major App Store changes in the EU and Apple Podcasts transcripts. The update also adds new emoji and includes preparations for the launch of next-generation CarPlay later this year. More details about the new...
apple wallet drivers license feature

Apple Said iPhone Driver's Licenses Will Expand to These 8 U.S. States

Monday February 12, 2024 7:51 am PST by
In 2021, Apple introduced a feature that lets residents of participating U.S. states add their driver's license or ID to the Wallet app on the iPhone and Apple Watch, providing a convenient and contactless way to display proof of identity or age. Unfortunately, states have been slow to adopt the feature since it was first announced in September 2021, with IDs in the Wallet app only available ...
samsung galaxy ring

'Apple Ring' Allegedly in Development to Rival Samsung Galaxy Ring

Tuesday February 20, 2024 2:27 am PST by
Apple is speeding up development of a smart ring that can be worn on the finger to track users' health biometrics, claims a new report coming out of Korea. Teaser image of Samsung Galaxy Ring shown at Galaxy Unpacked in January Apple has toyed with the idea of a ring wearable for several years, as indicated by several patents, but with Samsung preparing to bring its own product to market, the ...
New Macs iPads iOS 17 4

New Macs and iPads Coming Soon: What to Expect

Saturday February 17, 2024 3:00 am PST by
Following the launch of Apple's Vision Pro headset, attention has shifted towards what is next on the company's agenda this year. As usual, March should be eventful for Apple, as it is expected to release new MacBook Air, iPad Pro, and iPad Air models during the month. In a recent press release, Apple also confirmed that iOS 17.4 will be released in March. Below, we recap what to expect...
Apple Watch Series 9

5 Major New Features Rumored for This Year's Apple Watch

Sunday February 18, 2024 3:00 am PST by
Thinking about upgrading your Apple Watch or buying one for the first time? If your current smartwatch is doing its job just fine and it's only the idea of a good deal that's piqued your interest, it could be worth holding out until later this year when Apple unveils its next-generation version. Here's why. There are already several rumors from reputable sources that suggest 2024 could be a...
m3 macbook pro 14 16

Apple Now Selling Refurbished M3 Pro and M3 Max MacBook Pro Models

Monday February 19, 2024 5:04 pm PST by
Apple today began offering refurbished versions of the 14-inch and 16-inch MacBook Pro models with M3 Pro and M3 Max chip options, offering the machines at a discount for the first time since their October 2023 release. The release of M3 Pro and M3 Max models on Apple's refurbished store comes almost two weeks after the entry-level 14-inch M3 MacBook Pro first appeared on the store....