Apple closes the iOS 15.6 authentication channel. IPhone cannot be downgraded after upgrading the official version of iOS 15.6.1.

CTOnews.com August 25, just a week after releasing the official version of iOS 15.6.1 to all users, Apple stopped signing iOS 15.6and closed the authentication channel. As a result, users can no longer downgrade iPhone, iPad, and iPod touch software from iOS 15.6.1 to iOS 15.6. This has a direct impact on users waiting for jailbreak tools.

Apple iOS 15.6.1 was released on August 17, fixing the overall bug Bug and improving performance. Apple has also fixed two major security vulnerabilities through updates. Both vulnerabilities allow applications to execute arbitrary code with kernel privileges without the user's consent.

As for iOS 15.6, the update was released on July 20, and users can pause or replay live sports games in the Apple TV app. This update also includes bug Bug fixes and security improvements. The main reason Apple does not allow users to downgrade their devices is that older versions of iOS are more vulnerable to security vulnerabilities.

Jailbreak iPhone and iPad users often use to revert to older versions of iOS. CTOnews.com learned that earlier this month, the Odyssey team announced that they had been developing the first jailbreak tool for devices running iOS 15. However, as system protection becomes more and more powerful, this tool is only available for versions from iOS 15.0 to iOS 15.1.1.

The developers behind the jailbreak tool say they have been trying to expand support for iOS 15.4.1, but this will take longer. Of course, if the user has updated the device to iOS 15.6.1, they cannot fall back to these versions.

For users who encounter a major error Bug after upgrading to the latest version of iOS, it is sometimes helpful to restore Apple devices to the previous version of iOS.

However, if users encounter any problems using iOS 15.6.1 now, they will have to wait for future updates and cannot be downgraded to iOS 15.6. Apple has also been working on a beta version of the iOS 16 Beta, which is expected to be released to the public in September.

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