Apple Stops Signing iOS 15.1 and iOS 15.1.1, Downgrading from iOS 15.2 No Longer Possible

Following the release of iOS 15.2 last week, Apple has stopped signing iOS 15.1.1 and iOS 15.1/iPadOS 15.1 for all compatible iPhones and iPads. This means it is no longer possible to downgrade your iPhone or iPad back to iOS 15.1/iOS 15.1.1 from iOS 15.2 unless and until you have the necessary SHSH blobs saved.

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Author: Rajesh Pandey