Apple Stops Signing iOS 17.3.1, Downgrading No Longer Available

Apple today stopped signing iOS 17.3.1 preventing iPhone users from downgrading to that version of iOS. iOS 17.3.1 is no longer being signed following the March 5 release of iOS 17.4, an update that introduced app ecosystem changes in the EU, new emoji, and more.

iOS 17
Apple routinely stops signing older versions of iOS, so it is not unusual that the iOS 17.3.1 update is no longer available. Apple prevents users from installing older versions of iOS to encourage customers to keep their operating systems up to date and to prevent downgrading to older, less secure versions of the ‌iPhone‌ operating system.

iOS 17.4 is now the only publicly released version of iOS available.

Top Rated Comments

viktorhun Avatar
4 weeks ago

I never left.
Running iOS 9.3.5
Not all heroes wear capes

Attachment Image
Score: 7 Votes (Like | Disagree)
Naraxus Avatar
4 weeks ago
This should be illegal.
Score: 6 Votes (Like | Disagree)
coffeemilktea Avatar
4 weeks ago
So anyone who doesn't like the new emojis can't go back? That's rough. ?‍↔️ Free the emoji dislikers! ⛓️‍?
Score: 5 Votes (Like | Disagree)
trifero Avatar
4 weeks ago
So in case of disaster, I have to upadate also my Apple Watch fron watchOS 9 to the horrible watchOS 10. I like Apple less each day.
Score: 4 Votes (Like | Disagree)
now i see it Avatar
4 weeks ago
I never left.
Running iOS 9.3.5
Score: 4 Votes (Like | Disagree)
klasma Avatar
4 weeks ago

So anyone who doesn't like the new emojis can't go back? That's rough. ?‍↔️ Free the emoji dislikers! ⛓️‍?
Hopefully the EU will mandate that emojis can be individually uninstalled. Maybe even emoji modifiers.
Score: 2 Votes (Like | Disagree)

Popular Stories

iPhone 16 Camera Lozenge 2 Colors

iPhone 16 Plus Rumored to Come in These 7 Colors

Wednesday April 10, 2024 3:52 am PDT by
Apple's iPhone 16 Plus may come in seven colors that either build upon the existing five colors in the standard iPhone 15 lineup or recast them in a new finish, based on a new rumor out of China. According to the Weibo-based leaker Fixed focus digital, Apple's upcoming larger 6.7-inch iPhone 16 Plus model will come in the following colors, compared to the colors currently available for the...
apple tv 4k yellow bg feature

When to Expect a New Apple TV to Launch

Tuesday April 9, 2024 8:30 am PDT by
It has been nearly a year and a half since the current Apple TV was released, so the device is becoming due for a hardware upgrade. Below, we recap rumors about the next Apple TV, including potential features and launch timing. The current model is the third-generation Apple TV 4K, announced in October 2022. Key new features compared to the previous model from 2021 include a faster A15...
apple silicon feature joeblue

Macs to Get AI-Focused M4 Chips Starting in Late 2024

Thursday April 11, 2024 10:10 am PDT by
Apple will begin updating its Mac lineup with M4 chips in late 2024, according to Bloomberg's Mark Gurman. The M4 chip will be focused on improving performance for artificial intelligence capabilities. Last year, Apple introduced the M3, M3 Pro, and M3 Max chips all at once in October, so it's possible we could see the M4 lineup come during the same time frame. Gurman says that the entire...
iOS 18 WWDC 24 Feature 2

iOS 18 May Feature All-New 'Safari Browsing Assistant'

Wednesday April 10, 2024 6:11 am PDT by
iOS 18 will apparently feature a new Safari browsing assistant, according to backend code on Apple's servers discovered by Nicolás Álvarez. MacRumors contributor Aaron Perris confirmed that the code exists, but not many details are known at this time. Álvarez said it seems like the browsing assistant will use iCloud Private Relay's infrastructure to send relevant data to Apple in a...

Review: Six Months With the iPhone 15 Pro

Wednesday April 10, 2024 10:53 am PDT by
It's been a bit over six months since the iPhone 15 lineup came out in September, and MacRumors videographer Dan Barbera has been using an iPhone 15 Pro Max sans case since launch. Over on our YouTube channel, Dan did a long term review to demo how his phone has held up and his thoughts on the Action button, battery life, and camera features. Subscribe to the MacRumors YouTube channel for more ...
iPhone 16 Pro Sizes Feature

Alleged iPhone 16 Battery Details Show Smaller Capacity for One Model

Tuesday April 9, 2024 3:46 am PDT by
Apple's upcoming iPhone 16 lineup will feature bigger battery capacities compared to previous-generation models with the exception of the iPhone 16 Plus, which will have a smaller battery than its predecessor. That's according to the Chinese Weibo-based leaker OvO Baby Sauce OvO, a relatively new source of supply chain leaks with an as-yet unproven track record for accuracy. The iPhone 16 ...