iPhones on iOS 26 Cant Downgrade Back to iOS 18.6.2

Apple has stopped signing iOS 18.6.2, which means you cannot downgrade a device that has already been upgraded to iOS 26. The change was reported on September 22, 2025 and closes the window for reverting to iOS 18 after last weeks iOS 26 rollout. Apple released iOS 26 on September 15, 2025. iOS 18.6.2 shipped [] The post iPhones on iOS 26 Cant Downgrade Back to iOS 18.6.2 appeared first on The Mac Observer.