DevTeam released PwnageTool 4.2 utility. It is able to create a custom IPSW that can perform an untethered jailbreak on iOS 4.2.1. As usual it can preserve baseband version for unlockers. Devteam used the same method that was implemented in greenpois0n.

PwnageTool supports all 4.2.1 devices other than iPod touch 2G:

• iPhone3G
• iPhone3GS
• iPhone4
• iPhone4-Verizon
• iPod touch 3G
• iPod touch 4G
• iPad
• AppleTV 2G

Jailbreak is even improved compared to GreenPois0n RC6:

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The iPhone DevTeam have probably found a new method to jailbreak Apple devices with the A4 chip. This includes such devices as iPhone, iPad, iPod and Apple TV. This is great news!

MuscleNerd tweeted.
Think we’ve figured out a way to extend PwnageTool+limera1n+@comex hacks to untethered JBs for all future A4 firmwares 🙂

Tags: A4, Ads, app, Apple, Apple TV, comex, DevTeam, ed, Firmware, hack, iPad, iPhone, iPod, jailbreak, Limera1n, MuscleNerd, news, pwnagetool, tethered, untethered, джейлбрейк