Apple today stopped signing iOS 17.5.1, preventing iPhone users from downgrading to that version of iOS. The update is no longer being signed after the July 29 release of iOS 17.6.
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.
iOS 17.5.1 addressed a corruption bug that could cause deleted photos to reappear on an iPhone. There were no notable features in the iOS 17.6 update, with Apple adding unspecified bug fixes and security updates.
Popular Stories
iPhone 16 Pro Model to Get Biggest Battery Capacity Jump
The iPhone 16 Pro and iPhone 16 Pro Max are rumored to feature bigger battery capacities compared to previous-generation models, but it looks like the smaller iPhone 16 Pro device could see the biggest improvement, according to new details. Chinese Weibo-based leaker Instant Digital today posted the mAh (milliampere-hours) figures for the iPhone 16 Pro (3,577 mAh) and iPhone 16 Pro Max…
Gurman: M4 MacBook Pro, Mac Mini, and iMac Coming This Year
Apple will update its MacBook Pro, Mac mini, and iMac lines with its latest M4 chip later this year, according to Bloomberg reporter Mark Gurman. Writing in his latest Power On newsletter, Gurman said Apple is preparing to upgrade every Mac to the new Apple silicon processor generation. Following the launch of the M4 iPad Pro in May, Apple will continue the M4 transition with the above…
Everything New in iOS 18 Beta 5
With the fifth beta of iOS 18 that came out today, Apple added some notable new features, even though it’s getting later in the beta testing process. There are design updates to the Photos app and a whole new Safari option, along with several smaller changes. Photos App Changes Apple responded to tester feedback about the Photos app, and there have been some changes to streamline the…
iPhone Driver’s License Support Coming Soon to California
iPhone and Apple Watch users in California will soon be able to add their digital ID and driver’s license to the Wallet app, based on the discovery of landing pages on the state government DMV website explaining the feature to consumers. “Now you can add your California driver’s license or state ID to Apple Wallet on iPhone and Apple Watch so you can present it easily and securely in person…
