Home > Article > Mobile Tutorial > Apple stops signing iOS 17.6 system, upgraded iPhone users can no longer downgrade

Apple stops signing iOS 17.6 system, upgraded iPhone users can no longer downgrade

WBOYOriginal: 2024-08-21 16:00:41599browse

IT House reported on August 16 that Apple stopped signing the iOS 17.6 version system today, preventing iPhone users from downgrading to this version. Apple has released the iOS 17.6.1 update on August 8.

苹果停止签署iOS 17.6系统，已升级iPhone用户无法再降级

1. Apple regularly stops signing older versions of iOS, usually within a week or two after a new version is released.

When Apple stops signing an update, it can no longer be installed on iPhone due to server-side software verification checks, and users who have updated to the latest version of iOS cannot downgrade.
Preventing downgrades encourages users to keep their operating systems up to date and install the latest security fixes.
iOS 17.6 focuses on introducing security fixes, while iOS 17.6.1 includes "important bug fixes" and resolves an issue that prevented advanced data protection features from being enabled or disabled.

The above is the detailed content of Apple stops signing iOS 17.6 system, upgraded iPhone users can no longer downgrade. For more information, please follow other related articles on the PHP Chinese website!

ios iphone

Statement：

The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Previous article：Japanese media say Chinese consumers are staying away from iPhone, and local brands are on the riseNext article：Japanese media say Chinese consumers are staying away from iPhone, and local brands are on the rise

See more

Apple stops signing iOS 17.6 system, upgraded iPhone users can no longer downgrade

Related articles