Apple has stopped signing iOS 11.2, iOS 11.2.1, and iOS 11.2.2 following release of iOS 11.2.5
Following the release of iOS 11.2.5 last week, Apple has stopped signing the previous three versions of iOS. iOS 11.2, iOS 11.2.1, and iOS 11.2.2 are no longer being signed, preventing users from installing older versions of iOS.Â