After messing around with my 3GS and the 4.0GM I was attempting to do the Jailbreak that’s mentioned on my site as well as others. After the restore process I always got an error 16XX but, after messing around a bit I found that if I restored to 3.1.2 Official firmware, then I used Pwnage Tool to 24kpwn then I was able to restore directly to my iOS 4.0GM Jailbroke firmware and no longer had the errors.

I hope this helps!

MSFT.guy released iPhone 3GS iOS 4 pwnage tool bundle, means with a little workaround in pwnage tool you can update your already pwned iPhone 3GS to iOS 4 GM with jailbreak and unlock support. Procedure is very easy, you have to add two bundle files to the DevTeam’s pwnage tool for Mac, that will enable support for custom firmware 4 beta Creation. Need less to say iOS is still in GM build, final build is now less than two weeks away.

Note / Warning :

• The bundles included in this release are not official because they were not issued by the DevTeam.
• You must be on already pwned 4.0 Beta / 3.1.3 / lower.
• iPhone 3GS and Mac OS only.
• This is for advanced users only if you don’t know, what you are doing stay away and wait for official Dev team / Geohot tools.
• Use this guide on your own risk, i am not responsible for any damage (if any). The procedure mentioned below is tested by me and it works.

Requirements:

• Pwnage Tool 3.1.5
• iPhone2,1_4.0_8A293_bundle
• data

Instructions to add custom bundles

1. Download the iPhone 3GS iOS 4 GM Bundle mentioned in the requirements and unzip to your desktop or where ever you want .

2. Right-click the Mouse on PwnageTool and click on “Show Package Contents”

3. Then enter “Contents” then “Resources” and finally “FirmwareBundles”.

4. Move the iPhone2,1_4.0_8A293_bundle.zip to the FirmwareBundles folder  and close the folder.

Instructions to Update Cydia in pwnage tool

1. move pwnage tool.app to desktop

2. Place data.tar in PwnageTool.app/Contents/Resources/CustomPackages/CydiaInstaller.bundle/files/

3. and then open terminal and perform following commands

cd desktop

cd PwnageTool.app/Contents/Resources/CustomPackages/CydiaInstaller.bundle/files/

tar xpvf data.tar

4. Launch PwnageTool (now supported for iOS 4 GM) and proceed normally with the construction of custom firmware, you can take a reference fro our previous guide to Jailbreak iPhone With Pwnage Tool (Mac). This way, Mac users can jailbreak the latest iOS 4 GM while preserving their baseband.

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