Apple has stopped signing iOS 11.4.1 Following the release of the public version of iOS 12.0.1 Apple has stopped signing the last version of IOS iOS 11.4.1.
In this regard, users lost the ability to downgrade the firmware to version 11.4.1. Therefore, if you decide to upgrade to iOS 12, keep in mind — there is no turning back.
Today, Apple continues to sign iOS 12, therefore changing the firmware is only possible on this version.
At the time of publication of the material iOS 12 is installed on more than 50% of active Apple mobile devices. Such distribution dynamics OSes exceeds the pace of installations of iOS 11.
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