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iphone5s如何降级系统吗
更新时间: 2020-09-20 00:00:00  

1、进入设置,iCloud,查找我的iPhone,然后将开关按钮关闭;

2、用PC下载所需系统正式版固件;

3、将iOS设备连接PC或Mac,然后开启iTunes。苹果设备进入DFU模式;

4、按住shift键并点击“恢复iPhone”,找到刚下载的系统固件,固件便会开始被刷入设备当中。

关键词: iphone5s 如何 降级 系统

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