Update: ModMyI is reporting that Spirit2Pwn is not developed by Gojonnyboi and is probably fake.
Jailbreak iOS 4
Spirit2Pwn: Hack Allows Users To Update And Jailbreak iPhone 3GS With iOS 4, Which Is Already Jailbroken Using Spirit [Updated]
iPhone jailbreaking community has released tools like PwnageTool, Redsn0w and Sn0wbreeze to jailbreak iOS 4 for iPhone 3G and iPhone 3GS users. But in case of iPhone 3GS, they only work if you’ve an iPhone 3GS with older bootrom, which essentially means that users who bought their iPhone 3GS after mid-October last year are out of luck.
This might soon change if you go by a new video, which shows iPhone 3GS (with new bootrom) on iOS 4 that’s jailbroken.
We had just published our step-by-step guide to jailbreak iOS 4 using Redsn0w for iPhone 3G for Mac users. This guide is for Windows users.
Yesterday, we had published our step-by-step guide to jailbreak the latest iOS 4 using PwnageTool 4.01 for iPhone 3GS users. This guide is for iPhone 3G users.
Comex, developer of popular jailbreaking tool, Spirit jailbreak for iPhone OS 3.1.3, iPhone OS 3.1.2 has discovered another userland jailbreak in iOS 4 similar to the one used in Spirit jailbreak.
In this article, we will take you through a step-by-step procedure to jailbreak the latest iOS 4 using PwnageTool 4.01. This guide is only for iPhone 3GS users.
We had published a step-by-step guide on how to find out iPhone 3GS bootrom version. But as some of our readers have pointed out there is an easier way to find out without putting your iPhone 3GS in DFU mode.
If you’re interested in jailbreaking your iPhone 3GS you might have figured out by now that the jailbreaking tools like PwnageTool 4.0 for iOS 4 released by the iPhone Dev Team work only on iPhone 3GS models with older bootrom.
So one of the most frequently asked questions by our readers is how does one find out if the iPhone 3GS has an older or newer bootrom?
Update: Use F0recast to find out iPhone 3GS bootrom, it's a lot easier than this method.