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小弟的4s升級到iOS 8.0結果...啟用錯誤...該怎麼解決？？

Jul 26th 2014, 16:02

用DFU方式降級，降級成7.1.2應該可以

DFU模式：
１、將你的設備與電腦連接並打開電腦上的iTunes。
２、確認你的設備在「開機」的狀態。
３、同時按住「電源鍵＋HOME鍵」等到你的設備關機螢幕變黑時開始默數５－６秒，然後放開「電源鍵」（HOME鍵不放），直到電腦上的iTunes有所反應後即可放開你的「HOME鍵」。

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