Snowbreeze 2.2 r1 for iOS 4.2.1 Jailbreak | Create Custom 4.2.1 Firmware Cosmin Coman on February 16, 2011 with 51 Comments
As many of you already know Snowbreeze 2.2 r1 is the Windows Version of PwnageTool 4.2. With Snowbreeze 2.2 r1 you can create custom 4.2.1 firmwares to jailbreak your iDevice and preserve the old baseband for unlock.
Snowbreeze 2.2 r1 only works on Windows, so if you are using a Mac you need to follow the PwnageTool guide posted here.
Snowbreeze uses the same exploit as Greenpoison RC5, but the main difference is that by jailbreaking with Snowbreeze for 4.2.1 you will be able to unlock using ultrasnow 1.2.
Also keep in mind to use “baseband preservation mode” if you want to unlock your iPhone 3G, 3GS, 4 after jailbreaking with Snowbreeze 2.2 r1.
Other great features are the ability to play Pac-Man while jailbreaking and the ability to change boot logos.
Snowbreeze 2.2 r1 for iOS 4.2.1 supports the following iDevices:
The tutorial for jailbreaking with Snowbreeze 2.2 r1 for iOS 4.2.1 is similar to the tutorial for jailbreaking iOS 4.1 with snowbreeze 2.0 posted here. You can follow that tutorial and adapt it for your needs. Of course, you have to download all the necessary tools from here.
After you have successfully jailbroken your iPhone 3G, 3GS, 4 while preserving baseband with Snowbreeze 2.2 r1 you can unlock it using Ultrasnow 1.2 ( skip the baseband upgrade stuff)
Download Snowbreeze 2.2 r1 for iOS 4.2.1 here
Download iOS 4.2.1 for your Device here
Download .NET framework 3.5 here
Update: Snowbreeze 4.3.1 was released!
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