You may recall that Apple recently started signing iOS & iPadOS 17.3.1 again for unknown reasons after initially unsigning it. In effect, this meant that iPhone and iPad users could downgrade to iOS & iPadOS 17.3.1 from newer firmware again because Apple’s online servers would have provided the green flag necessary to move forward with it.
Apple stops signing iOS 17.3.1 & 17.4, ending downgrades from 17.4.1
