Musclenerd just posted an update on official iPhone dev – team blog (read here), regarding iOS 4.2.1 untethered jailbreak. Dev team asked for beta testers to test the latest version of Redsn0w. According to blog “ Over the Christmas weekend we’ll be releasing a version of redsn0w that implements the “backup plan” to the 4.2.1 untethered jailbreak. “
Right now, the “backup plan” requires that you have the 4.2b3 IPSW on your Mac, and that Cydia has your 4.2b3 SHSH hashes. Please don’t pirate that 4.2b3 IPSW! (Dev team is also working on a way that this technique might apply to all those with 4.1 IPSWs, but that’s not the first goal right now.) This clearly suggest you need iOS 4.2b3 on your desktop to fulfill the Redsn0w requirements. We’ll keep you updated as the story grow.
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