在概要部分，一定要检查更新，确定你有最新版本的操作系统以确保顺利过渡到第五代操作系统。

In the Summary section, make sure to check for updates to make sure you have the latest version of the iOS to ensure a smooth transition to iOS 5.

youdao

在概要部分，一定要检查更新，确定你有最新版本的操作系统以确保顺利过渡到第五代操作系统。

In the Summary section, make sure to check for updates to make sure you have the latest version of the iOS to ensure a smooth transition to iOS 5.

youdao