You can jailbreak iOS 4.0.2 on iPhone 3GS (Old bootrom) with the unofficial build of PwnageTool. For those who don’t know, Apple released iOS 4.0.2 for iPhone 4, 3GS, 3G and iPod Touch 2G, 3G fixing the PDF exploit which enabled all iPhone, iPod Touch and iPad users to jailbreak their devices on all firmwares. If you are on iOS 4.0 / 4.0.1 or less, you can use this PDF patch to save your device from PDF vulnerability without updating firmware to iOS 4.0.2.

Now you can jailbreak iOS 4.0.1 on iPhone 3GS with PwnageTool Bundles. Remember this is an unofficial release and will jailbreak already pwned iPhone 3GS old bootroms only. Moreover it will be a hactivated jailbreak means it allows you to activate your iPhone on an unofficial carrier without inserting AT&T SIM first. Unlike Redsn0w it will preserve your baseband from being upgraded to 05.13.04.

iPhone Dev Team has released an updated version of PwnageTool 4.0 which was released yesterday. The only reason iPhone Dev Team rolled out this update is to fix issues related to iBooks app which were being experienced by many users after jailbreaking their iPhone by using PwnageTool 4.0. Just like the previous version, PwnageTool 4.01 will jailbreak iPhone 3G, iPhone 3GS and iPod Touch 2G (non-MC model) while preserving your baseband from being upgraded to 05.13.04.

PwnageTool 4.0 (4.01 released) can easily jailbreak your iPhone 3G iOS 4.0 final version without upgrading your baseband to 05.13.04. Remember you can also use Redsn0w 0.9.5b5-3 which will jailbreak iOS 4.0 on your iPhone 3G but it will upgrade your baseband to 05.13.04 which still can be unlocked via Ultrasn0w 0.93. We recommend you to use PwnageTool instead of Redsn0w as PwnageTool preserves your baseband version from being upgraded to 05.13.04.

Before the release of official PwnageTool 4.0, only way to jailbreak iPhone 3GS iOS 4.0 is by using PwnageTool bundles created by MSFT.guy. These bundles actually act as a workaround to allow PwnageTool 3.1.5. Now iPhone Dev Team has officially released PwnageTool 4.0, it is recommended to use this official latest release of PwnageTool to jailbreak your iPhone 3GS.

iPhone Dev Team has recently released PwnageTool 4.0 (4.01 released) which is capable of jailbreaking the latest iOS 4.0 firmware on your iPhone 3G, 3GS and iPod Touch 2G (non-MC models). Before you will follow the steps below, please read the official notes from iPhone Dev Team here to make sure that your device is compatible with PwnageTool 4.0. In short, by following the guide below, you will be cooking a custom IPSW file of iOS 4.0 for your device which you can easily restore using the latest version of iTunes.

iPhone Dev Team has finally released PwnageTool 4.0 (4.01 released), an official update after PwnageTool 3.1.5 which will jailbreak iOS 4.0 final version on iPhone 3GS, iPhone 3G and iPod Touch 2G. It will preserve your baseband version so that you can unlock it with Ultrasn0w 0.93. Before you may start the jailbreaking your device with PwnageTool 4.0 , please read the official notes below from iPhone Dev Team to make sure that your iPhone / iPod Touch is supported by PwnageTool 4.0 or not.

MSFT.guy has released PwnageTool bundles to jailbreak iPhone iPhone 3GS on iOS 4. These bundles act as a workaround to allow current PwnageTool 3.1.5(Dev-Team official) create iOS 4 custom firmware files for iPhone 3GS, as the PwnageTool averts the baseband upgrade during jailbreak, therefore we can unlock iPhone 3GS by using blacksn0w or Ultrasnow. MSFT.guy has a history of modifying official jailbreak tools to add support for latest firmwares, previously he patched blacksn0w to work with firmware 3.1.3 05.11.07 baseband and recently he modified blacksn0w to unlock iPhone OS 4.0 Beta-4(now knows as iOS 4).

In past, we have seen many fake attempts like thunderst0rm, limera1n to jailbreak/unlock iDevices, but this time we’ve something new! A new guy (@4n0nym0u5DEV) who claims to be an iPhone hacker has released a modified version of PwnageTool – PwnageTool 4.0 which can jailbreak iPhone 3GS 4.0 OS without upgrading its firmware. Users who have tried PwnageTool 4.0/3.1.6 are reporting issues like it doesn’t work, phone halting etc.

PwnageTool is a very famous tool created by iPhone Dev-Team which is used for jailbreaking and unlocking various iPhone firmwares. Unfortunately PwnageTool is only available for Mac OS X users. As a Windows user, in order to jailbreak or unlock your iPhone / iPod Touch you have to download custom IPSW files which is created on Mac with the same PwnageTool. All you have to do is to restore the custom firmware on your iPhone using iTunes which allows you to maintain your iPhone baseband and downgrade firmware anytime. Here are working download links for all custom IPSW files for every firmware released by Apple for iPhone / iPod Touch.