Jailbreak/ unlock iPhone 3GS, iPhone 4 on iOS 4.0.1 with Pwnage tool may brick iPhone. There is an unofficial jailbreak tool Pwnage that you can use to install on your iPhone 3GS and jailbreak it successfully. There is an unofficial jailbreak tool Pwnage that you can use to install on your iPhone 3GS and jailbreak it successfully. But it is still unclear if this is working perfectly well or not or whether there are some issues with it. In my view one should not take risks of this sort and wait for some time till people come up with their experience. The best thing with this Pwnage tool is that it enables your iPhone 3GS to run on iOS 4.0.1. But a reader who tried the method (it is a rather lengthy method) said he couldn’t do it. He goes on to say that I followed all directions, but, step 9 and 10 don’t come up at all. And if I go to ‘restore’ instead of restoring from the file prepared by pwnage, the iphone connects to Apple and restores to the latest system. If I disconnect i get the message that i should try later. Never do i get the option to select the ‘custom restore’ file.”