推荐回答(1个)
不用必须刷机
一、前往苹果官网下载并安装 iTunes 软件,在页面中的 iTunes 栏目中可以下载。

二、电脑上的 iTunes 准备好以后,接下来请把 iPhone 与电脑连接起来,并点击窗口中的 iPhone 图标。

三、接着请点击 iTunes 窗口里的“立即备份”按钮,然后根据自己的需要来备份 iPhone 数据即可。

四、上面的备份操作完成以后,接下来就可以开始为 iPhone 恢复系统,解决访问限制密码的问题了。首先请长按下 iPhone 的电源键,然后滑动关机。

五、接下来请按照下面的操作步骤,让 iPhone 进入恢复模式,点击 iTunes 窗口中的“恢复 iPhone”按钮。

六、接着 iTunes 会连接网络,并提示我们是否要将当前这部 iPhone 恢复并更新到最新的版本。点击“恢复并更新”按钮继续。

七、随后 iTunes 会自动连接苹果的更新服务器,下载当前适用于 iPhone 的最新 iOS 系统固件。由于固件容量比较大,下载速度有快有慢,根据你当前的网络速度决定的。

八、若在 iTunes 下载固件期间 iPhone 自动重新启动的话,请按照之前的方法,让 iPhone 再次进入恢复模式,重新操作一次即可。当下载完成固件以后,会自动为 iPhone 恢复系统。恢复完成以后会进入激活界面,重新激活 iPhone 即可。
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