Following the release of iOS 12 on September 17, Apple has stopped signing iOS 11.41, the previous version of iOS that was available to consumers.
Apple routinely stops signing older versions of software updates after new releases come out in order to encourage customers to keep their operating systems up to date.
iOS 12 and today’s iOS 12.0.1 release are the only versions of iOS that can be installed on iPhones and iPads by the general public. Developers and public beta testers can download iOS 12.1, an iOS 12 update that’s being beta tested.
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Source From: macrumors.com.
Original article title: Apple Stops Signing iOS 11.4.1 Following iOS 12 Launch, Downgrading No Longer Possible.
This full article can be read at: Apple Stops Signing iOS 11.4.1 Following iOS 12 Launch, Downgrading No Longer Possible.