Download Apple iOS 4.2.1 software update – iPhone, iPad, iPod

iOS 4.2.1 Software Update brings all-new features to your iPhone, iPad, and iPod touch. Just connect your device to your computer to download the update. It’s free. It’s easy. And it lets you do even more with the world’s most advanced mobile operating system.

iPhone 3G


  • iPhone 3GS

  • iPhone 4

  • iPad

  • iPod touch 2nd gen

  • iPod Touch 3rd gen

  • iPod Touch 4th gen