iOS 4.2发布:什么是新的?

Andrew Coles

由 Andrew Coles

iOS 4.2最终将iOS 4带入了iPad

经过数周的传闻,Apple的新iOS 4.2终于发布了,正如TechCrunch首次报道的那样。这意味着iPad自推出以来首次出现在与其他所有设备相同的iOS版本上。

通过这些出色的新功能,更新iOS 4.2为iPad注入了新的活力

iOS 4.2更新中包含大量新功能。长期受苦的iPad用户已经有好几个月的时间来体验iPhone和iPod touch用户所享受的功能丰富的iOS 4。等待现在结束了。

  • 多任务处理,在应用程序之间切换现在毫不费力
  • 文件夹,iPhone上的一个方便的组织者,但它将是iPad上不可或缺的
  • 全局控制 - 与iPhone相同但更大更好
  • 据传AirPrint上周已被撤销,但包含在某些惠普打印机中
  • AirPlay:从Apple TV无线传输高清视频
  • “查找我的iPhone / iPad”跟踪,免费

有关iPad上新iOS 4.2功能的完整列表,请访问Apple站点

iOS 4.2也可在其他设备上使用

虽然这是iPad的重要日子,但可以在以下兼容设备上进行更新:

  • iPhone 3G
  • iPhone 3GS
  • iPhone 4
  • iPod touch第二代
  • iPod touch第3代
  • iPod touch第4代

在iTunes上备份你的iPad,以防万一......

在您进入并安装iOS 4.2更新以获得所有这些不错的功能之前,请先在iTunes上进行同步和备份

Andrew Coles

由 Andrew Coles on , last updated

我们曾经帮助过 3,000,000 多人恢复其丢失的 iPhone 数据。 所以我们也能为您排忧解难。


Comments (6)

I don't know my passcode to rescue the backup can you help me?

We'll try our best. Drop us a note through our help page or with the live chat, and we'll get started.

I need help I'm trying to do this in 2017 and the app is different. Is there an updated tutorial? By the way, I have iOS 11.


Hey Cameron, thanks for asking! Yes, we've just updated this page. Let us know if you have more questions.

This has been changed, and should be updated. The file for to find your restrictions passcode is com.apple.restrictionspassword.plist. everything else is the same.


Thanks for spotting this Jonathan, we've just updated it.

I've tried this step by step but when I try to extract the com.apple.springboard.plist file an error pops up saying "Key Not Found" exception? Anyone have any ideas what I should do?

Hi Naima, we'd recommend using the Restrictions Passcode recovery wizard instead of doing it manually. You can get into that click clicking "Restrictions passcode recovery" from the overview screen. Reach out if you get stuck!

Does this work on iPad ?

Hi Al, it sure does. Drop us a note if you need help.

I cant find the pin I have iOS 6.0.1 I only have 1 backup in my new computor and in the old I only have before I enabled the f-ckin restriction

How do I do now?

Mia, sorry to read that! Get in touch with us directly and we'll help you fix this.

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