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![How to upgrade to iOS 8 (and downgrade to iOS 7 if you regret it ...](https://www.iarticlesnet.com/pub/img/site/s_50.jpeg)
How to upgrade to iOS 8 (and downgrade to iOS 7 if you regret it ...
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日期:2024-09-07
17 Sep 2014 ... Update: The technique outlined here for reverting to iOS 7 no longer works as
Apple has stopped signing versions of iOS prior to iOS 8....看更多