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iOS 26.4 停止簽署 阻止從 iOS 26.4.1 降級

作者 Doris

<!-- wp:paragraph {"canvasClassName":"cnvs-block-core-paragraph-1776295550846"} --> <p>Apple 今天已停止簽署 iOS 26.4，這意味著已更新至 iOS 26.4.1 的 iPhone 用戶將無法再降級回較早...

https://www.newmobilelife.com/2026/04/16/ios-26-4-stop-signing-prevent-downgrade/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=ios-26-4-stop-signing-prevent-downgrade