ios降版 - iOS

By Iris
at 2017-10-09T14:54
at 2017-10-09T14:54
Table of Contents
最近iphone6s升級ios11.0.2之後
耗電量大增 無奈......
現在考慮降回10.3.3
想請問如果在ios11用itunes備份好一次之後再降回10,如果以後想要再升級11的話,這個備份是否能用呢?
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