Apple stops signing iOS 15.1.1 & blocking downgrade from iOS 15.2
Following the release of iOS 15.2 to all users last week, Apple today stopped signing iOS 15.1.1 for iPhone 13 models and iOS 15.1 for older iPhone models. This means that users who have updated their devices to iOS 15.2 can no longer downgrade to iOS 15.1.1 or iOS 15.1. iOS 15.1 was released in…