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.


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.

Popular Stories

iPhone 16 Pro Expected Later This Year With These 10 New Features

While the iPhone 16 Pro and iPhone 16 Pro Max are still around six months away from launching, there are already many rumors about the devices. Below, we have recapped new features and changes expected so far. These are some of the key changes rumored for the iPhone 16 Pro models as of March 2024:Larger displays: The iPhone 16 Pro and iPhone 16 Pro Max will be equipped with larger 6.3-inch…

iOS 17.4 Now Available With These 12 Changes for Your iPhone

iOS 17.4 was released last week following over a month of beta testing, and the update includes many new features and changes for the iPhone. iOS 17.4 introduces major changes to the App Store, Safari, and Apple Pay in the EU, in response to the Digital Markets Act. Other new features include Apple Podcasts transcripts, an iMessage security upgrade, new emoji options, and more. Below, we…

2024 iPad Pro: Key Rumors to Be Aware of Ahead of Announcement

Apple’s next-generation iPad Pro models are expected to be announced in a matter of weeks, so what can customers expect from the highly anticipated new machines? The 2022 iPad Pro was a minor update that added the M2 chip, Apple Pencil hover, and specification upgrades like Wi-Fi 6E and Bluetooth 5.3 connectivity. The iPad Pro as a whole has generally only seen relatively small updates in…

Here Are All the M3 Macs Still Expected This Year

Earlier this week, Apple announced new 13-inch and 15-inch MacBook Air models, the first Mac updates of the year featuring M3 series chips. But there are other Macs in Apple’s lineup still to be updated to the latest M3 processors. So, where do the Mac mini, Mac Studio, and Mac Pro fit into Apple’s M3 roadmap for the year ahead? Here’s what the latest rumors say. Mac Mini Apple announced …

Gurman: New iPads to Launch Towards ‘End of March’ or April

Apple plans to release new iPad Pro and iPad Air models “around the end of March or in April,” according to Bloomberg’s Mark Gurman. He also expects new Magic Keyboard and Apple Pencil accessories for iPads to launch simultaneously. Apple is expected to release a larger 12.9-inch iPad Air In his Power On newsletter on Sunday, Gurman reiterated that Apple is preparing a special build of the…

See also  How to Recover Deleted Photos on Your Mac

Gurman: AirPods Pro to Gain ‘Hearing Aid Mode’ in iOS 18

AirPods Pro will gain a new “hearing aid mode” with the release of iOS 18 later this year, according to the latest report by Bloomberg’s Mark Gurman. Writing in the subscriber edition of his regular Power On newsletter, Gurman claims that the “big news” for AirPods Pro in the near term will be support for a hearing aid-style function when iOS 18 drops in the fall. To be clear, this isn’t …

Apple CEO Tim Cook Makes Unusual Appearance in Porsche Taycan Turbo GT Premiere Video

Apple CEO Tim Cook today appeared in Porsche’s video announcement for the Taycan Turbo GT electric performance car. The Porsche Taycan Turbo GT is the most powerful production car the brand has ever made. During its premiere video, Porsche briefly showed off its custom race engineer cockpit app for the Vision Pro that allows a spectator to view laps from the perspective of the driver…