[教學] 免JB app降版
原文網址：https://www.newmobilelife.com/2017/09/04/ios-app-iphone-downgrade/
準備三個工具（Mac）
Charles Proxy
安裝iPA的軟體
官方 iTunes、還有一部 Mac 電腦
開啟clarles > Help > Install Charles Root Certificate
https://i.imgur.com/xDmwb5K.png
到keychain把Charles Proxy的憑證改成always trust
https://i.imgur.com/PBZdhcb.png
iTunes下載app立即按上方x取消下載
找到圖中格式的網址選項，右鍵選enable SSL Proxying
https://i.imgur.com/SzRNM1w.png
再重複一次下載取消，這次會多一個地球圖標的網址
https://i.imgur.com/QYXtlxw.png
到裡面buyProduct文件
到contents(我是在responds不知道為什麼不一樣）> XML Text
找到softwareVersionExternalldentifiers
下面就是版本號碼
複製你要的，右鍵地球的那個網址選breakpoint，
再次下載該app，這次會有彈出視窗
edit request把上面版本號碼改成你要的
按Execute，會跳出兩三次，直接Execute就好
拿到iPA怎麼安裝就不用說了吧（原文也有教
實測有用
https://i.imgur.com/oe4bn7X.png
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※ 編輯: ianliu1015 (114.36.5.246), 09/10/2017 22:42:08
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