Apple stop signing iOS 15 and it can’t be downgraded after upgrading to iOS 15.0.1/15.1 Beta

According to the latest report, following the official version of iOS 15.0.1 a week ago, Apple has today stopped signing the official version of iOS 15, which is the major version of iOS that was publicly released on September 20. With iOS 15 no longer being signed for verification, if the user’s iPhone has been updated to iOS 15.0.1, it is impossible to downgrade to the iOS 15 system.

Apple also stopped signing and verifying iOS 14.8 last week, which means that iOS 15.0.1 is currently the only public iOS version, and users who have already upgraded to iOS 15 cannot downgrade to iOS 14.8. Apple usually stops signing software updates for the old version after the new iOS version comes out to force customers to keep their operating system up to date.

The official version of iOS 15 marks an important version update, introducing focus mode, live text, Siri on the device, iCloud+, Safari browser changes, and more details. iOS 15.0.1 fixes a bug that prevents the certified Apple Watch from being used to unlock iPhone 13 series models while wearing a mask. It also fixes a bug that could cause the Settings app to incorrectly display a notification reminder that the storage is full, and fixes a bug in the audio meditation for Fitness + users.

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At the same time, Apple has been testing iOS 15.1 Beta, which re-enables SharePlay in FaceTime and provides ProRes video codec for iPhone 13 Pro and iPhone 13 Pro Max users. It is unclear when iOS 15.1 will be officially available to the public.

Reverting to an earlier iOS version is often used by jailbroken iPhone users. Restoring iPhone or iPad to the previous iOS version is sometimes helpful for users who encounter major bugs after upgrading to the latest version of iOS.

If you encounter any serious issues while using iOS 15.0.1, you must now wait for a future update instead of downgrading to iOS 15.

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