iH8Sn0w has just released Sn0wBreeze 2.2, the iOS 4.2.1 untethered jailbreak. You can download Sn0wBreeze 2.2 from below. Sn0wBreeze 2.2, just like PwnageTool creates custom firmware to untethered jailbreak iOS 4.2.1 firmware.
Sn0wbreeze 2.2 also preserves iPhone baseband so that you may unlock iPhone 4, 3GS or 3G using UltraSn0w. Unlike PwnageTool, which is available to Mac users only, Sn0wbreeze is available for Windows OS.
Download Sn0wBreeze 2.2
You can download Sn0wbreeze 2.2 for Windows from the link below:
Download Sn0wBreeze (All versions New & Old)
Mac users: Download PwnageTool 4.2
How to Jailbreak iOS 4.2.1
- Jailbreak iOS 4.2.1 [All Guides]
- Jailbreak iPhone 4, 3GS iOS 4.2.1 Untethered with GreenPois0n
- Jailbreak iPod Touch 4G, 3G, 2G iOS 4.2.1 Untethered with Greenpois0n
- Jailbreak iPad iOS 4.2.1 Untethered with Greenpois0n