IPAD4升级9.2.1总是失败,求助

2024-11-30 19:07:31
推荐回答(1个)
回答1:

方法一、直接通过 iPad 无线升级
1如果是越狱的设备请直跳过此步,在 iPad 主屏上找到“设置”图标,点击打开

2在设置列表找到“通用”选项,点击打开
3然后在右窗格中点击“软件更新”选项
4接下来等待 iPad 连网检测最新的 iOS7 升级固件,待检测出来以后,点击“下载并安装”即可
5最后等待 iPad 自动下载 iOS7 固件,下载完成以后根据提示点击安装即可。
方法二、用电脑上的 iTunes 为 iPad 更新
1如果是越狱的设备请直跳过此步,把 iPad 与电脑用原配 USB 数据线相连,打开iTuens软件。等待 iTunes 识别出 iPad 以后,点击右上角的“iPad”图标
2在管理的摘要界面,点击“检查更新”按钮
3接下来请等待 iTunes 连网检测更新,随后 iTunes 会提示有最新的 iOS7.0 可供使用,点击“下载并更新”按钮继续
4接下来在 iOS7 系统介绍窗口中点击“下一步”继续
5随后在条款窗口中点击“同意”按钮
6然后 iTunes 会自动在苹果的更新服务器上下载 iOS7 更新固件并自动将它安装到设备中
7最后等待 iTunes 完成固件下载并将最新的 iOS7 固件更新到设备即可。
方法三、为越狱的 iPad 升级 iOS7
1首先通过 91iPhone 专区下载,下载地址为: http://iphone.91.com/fw/。进入固件下载页面以后,选择自己对应的“机型”
2然后选择 iOS7 固件即可开始进入下载
3待固件下载完成以后,把 iPad 与电脑用原配 USB 数据线相连,打开iTuens软件。等待 iTunes 识别出 iPad 以后,点击右上角的“iPad”图标
4在 iPhone 摘要页面,按住键盘上的“shift”键,再点击“检查更新”按钮
5在弹出的固件系统文件选择窗口中,选中电脑本地中的 iOS 7 固件文件,点击“打开”按钮
6接下来 iTunes 会提示我们将会抹掉一切内容,还将会与 Apple 服务器验证恢复。点击“更新”按钮
7然后 iTunes 开始提取 iOS 7 固件系统文件,以及与苹果服务器进行验证。最后等待 iTunes 把 iOS7 固件更新到 iPad 中就好了。

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