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Apple closes the authentication channel of iOS 16.1.2. IPhone cannot be downgraded after upgrading iOS 16.2.

Shulou Source: shulou.com Published: 2023-11-24 13:34:22 10月28日 Update

CTOnews.com, December 21 (Xinhua)-- Apple stopped validating iOS 16.1.2 today after releasing the official version of iOS 16..2 last week. This means that users who update to iOS 16.2 can no longer be downgraded to an earlier version of the iOS system.

IOS 16. 2 introduced "boundless" App, and added Apple Music singing, lock screen improvements, and other features and bug fixes to iPhone.

CTOnews.com learned that Apple usually stops validating older versions of iOS within weeks of pushing the official update. For some users who update to the latest iOS system, downgrading can sometimes be very effective when they encounter a major Bug.

That's why Apple will wait a while before shutting down the authentication channel for the old iOS system. The previously released iOS 16.1.2 improves the reliability of car accident detection for iPhone 14 and iPhone 14 Pro users, improves compatibility with wireless operators, and brings important security patches.