有没有办法从 iOS 5.1 降级到 iOS 5.0?

Is there a way to downgrade from iOS 5.1 to iOS 5.0?(有没有办法从 iOS 5.1 降级到 iOS 5.0?)

问题描述

我不小心在 5.1 上升级了我的 iPhone 4，现在我无法在雪豹上测试 Xcode 4.2.我不想升级到 lion 来下载 xcode 4.3，因为我很喜欢很多人说它减慢了他们的 mac 并且还有其他几个问题.有没有办法从 iOS 5.1 降级到 iOS 5.0 并能够在我的雪豹上再次测试我在 xcode 4.2 上的应用程序?如果有人帮助谢谢，我将不胜感激.

I accidentally upgraded my iPhone 4 on 5.1 and now I can't test on Xcode 4.2 on my snow leopard. I don't want to upgrade to lion to download xcode 4.3 because I heart many people that said it slowed down their macs and had other several problems. Is there a way to downgrade from iOS 5.1 to iOS 5.0 and be able to test again my applications on xcode 4.2 on my snow leopard? I'd be grateful if someone helps thanks.

推荐答案

Xcode 4.2 可用于 iOS 5.1 设备.

Xcode 4.2 can be made to work with iOS 5.1 devices.

从此处下载 Xcode 4.3.将 5.1 SDK 和 Device Support 文件夹从 4.3 安装程序复制到 Xcode 4.2 文件夹中.

Download Xcode 4.3 from here. Copy the 5.1 SDK and Device Support folders from the 4.3 installer into your Xcode 4.2 folder.

前者进入Platforms/iPhoneOS.platform/Developer/SDKs，后者进入Platforms/iPhoneOS.platform/DeviceSupport

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