無法升級為ios10.3.1
我的手機是Iphone6，目前是ios10.2.1，容量還有11G這幾天要升級為ios10.3.1的時候發生了找不到更新檔，如下圖
http://i.imgur.com/5wnCKZc.jpg
然後試了好多次終於跑出更新檔的時候，按下載..卻出現失敗，如下圖
http://i.imgur.com/DujXfuU.jpg
有沒有大大可以幫助我這個手機白癡的..想升級為ios10.3.1是因為我的手機很常app會開不起來，然後更新app也很常出現失敗的狀況..跪求解答啊啊啊！謝謝各位
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