You Need to Download iOS 4.2 GM to Apply this Tricks and I will show you how to do it. Did you know that the iOS 4.2 Gold Master for all iOS devices has been seeded to All iOS Apple Developers.

iOS 4.2 Gold Master (GM)

To Update your iOS Devices into iOS 4.2 GM follow this guide

1. Search following files using your favorite search engine (Google, Bing, Yahoo)
   • iTunes 10.1 Beta 2, Mac OS X – 68.05MB
   • iTunes 10.1 Beta 2, Windows x86 – 70.9MB
2. Search iOS 4.2 GM IPSW files the version should be 8C134 because this version we are looking for
   iOS 4.2 GM (IPHONE 4) – 624.27MB
   iOS 4.2 GM (IPOD TOUCH 4G) – 608.65MB
   iOS 4.2 GM (IPAD) – 549MB
3. Plug in your device and back it up.
4. Click "Update" while holding down Option on OSX or Shift in Windows.
5. Select the IPSW file you just downloaded. and began update
6. Wait until it done
7. You have iOS Devices powered by iOS 4.2 GM right now

Using Torrent parameters should work on your Search Engine. Using Torrent, Download iOS 4.2 GM much faster and quicker. Thanks for CrunchGear and Gumball Tech for share this