Tag Archives: iOS 4.2.1

How to Untethered Jailbreak iOS 4.2.1 Using PwnageTool [Mac]

We told you about Dev-Team’s release of PwnageTool 4.2 yesterday. Here’s the full tutorial to Untethered Jailbreak iOS 4.2.1 using a Mac computer. If you have already jailbroken your iPhone 4 using Greenpois0n then you don’t need to jailbreak again. The advantage of PwnageTool over Greenpois0n is that it preserves your baseband and Ultrasn0w unlock.

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How to Update iPhone 4 to iOS 4.2.1 Safely Without Upgrading Baseband

´╗┐This tutorial will show you show how to update iPhone 4 to iOS 4.2.1 without upgrading your baseband. This method will preserve iPhone 4’s baseband at 1.59.00 so you don’t lose your software unlock using Ultrasn0w in case you don’t have a factory unlocked iPhone.

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