Recovery刷机时backup and restore是什么意思

recovery界面翻译：reboot system now：重启手机install zip from sdcare：从SD卡中安装刷机包wipe dare/factory reset：清除数据、恢复出厂设置backup and restore：备份与恢复资料mounts and storage：挂载与储存advanced：高级设置。先选择【wipe date/factory reset】及【wipe cache partition】进行双清操作，然后选择【install zip from sdcard】进行刷机即可。