JB後資料會全部不見嗎? - iOS

By Ethan
at 2016-08-19T02:47
at 2016-08-19T02:47
Table of Contents
目前我的版本為9.3.4,是最新版本,我朋友說我必須降刷版本才行,我本來是想說沒差
,降刷就降刷,但他跟我說JB後資料會全部不見,就跟當初手機剛買來的樣子一樣,這點
讓我猶豫了一下...
雖然說可以備份資料,但因為我APP很多,如果還要重新下載回來,一來麻煩,二來很多
社群網站、論壇和信箱的密碼我可能已經忘記了==
請問有什麼方法可以JB但資料又不會不見的?
--
,降刷就降刷,但他跟我說JB後資料會全部不見,就跟當初手機剛買來的樣子一樣,這點
讓我猶豫了一下...
雖然說可以備份資料,但因為我APP很多,如果還要重新下載回來,一來麻煩,二來很多
社群網站、論壇和信箱的密碼我可能已經忘記了==
請問有什麼方法可以JB但資料又不會不見的?
--
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