Apple stops signing iOS 17.5, downgrading is no longer possible

by Julie Clover

Apple today stopped signing iOS 17.5, preventing iPhone users from upgrading to this version of iOS. The update is no longer signed after the release of iOS 17.5.1 on May 20.

No for Apple It's not unusual for an old version of iOS to stop signing, and it usually happens a week or two after a new version of iOS is released. If an update is no longer signed, it means it can no longer be installed on ‌iPhone‌ after testing the server-side software.

Apple is preventing users from installing older versions of iOS to encourage customers to update their operating systems with the latest security improvements.

iOS 17.5 In version .1 Fixed an issue that could cause deleted photos to reappear on iPhone. This update is now the only general version of iOS available.


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