How To Jailbreak iOS 4.0.2 iPhone 3GS With PwnageTool

Posted by dkszone on August 28, 2010

Apple has releasediOS 4.0.2 to fix the PDF security exploit used by JailbreakMe jailbreak for iPhone 4, iPhone 3GS, 3G on iOS 4,iOS 4.0.1 and iPad 3.2.1. Do not upgrade to iOS 4.0.2 in case of iPhone 4 or iPad, as there is no jailbreak yet available for these devices. Others might be able to jailbreak iPhone 3G with redsn0w 0.9.b5-5 or iPhone 3GS using PwnageTool (Mac OSX).

PwnageTool lets you create custom firmware (IPSW) file, with which you can later restore your iPhone via iTunes. An unofficial release is now available to jailbreak iPhone 3GS (old bootrom) on iOS 4.0.2.

Disclaimer: Since it is an unofficial release of PwnageTool, we recommend to use it with caution. We are not responsible in case of any damage to your device.

Here are the steps to jailbreak iPhone 3GS iOS 4.0.2 using PwnageTool:

1. Download iOS 4.0.2 IPSW and PwnageTool (unofficial version) (links at bottom).

2. Launch PwnageTool, choose Simple mode (use Expert mode if you are an advanced user).

3. Then select your device, iPhone 3GS or iPod Touch 2G by clicking on the device picture. Click the Next arrow.

4. In the next screen, click on ‘Browse for IPSW…’ and select the iOS 4.0.2 IPSW file that you have earlier downloaded. Click Next button to continue.

5. When asked if you have an iPhone contract that you would activate normally through iTunes, click No. What the question means is that if you are on an official carrier. Clicking No tells PwnageTool that you are on an unofficial carrier and would like to later unlock your device. It will then not update your iPhone baseband.

6. PwnageTool will start building custom IPSW to jailbreak your iPhone. Wait till you see the ihaz Success! message which is shown after the custom IPSW firmware is cooked.

building-ipsw-pwnagetool-jailbreak-ios-4.0.2

7. Now go ahead and restore your iPhone 3GS to this custom iOS 4.0.2 IPSW via iTunes.

Launch iTunes, select your device in the left sidebar. Holding the SHIFT (ALT for Mac OSX) button, click on ‘Restore’. Browse and select the custom IPSW created by PwnageTool and let iTunes restore your iPhone to this firmware.

8. Once the installation is done, your iPhone will reboot.

That’s it. After your iPhone restarts, you have a fully jailbroken iPhone 3GS on iOS 4.0.2.

Now you can happily unlock iPhone 3GS with Ultrasn0w 1.1-1 on any baseband.

Download PwnageTool To Jailbreak iOS 4.0.2

Download iOS 4.0.2 IPSW for iPhone 3GS

Download iTunes 9.2.1

18 COMMENTS

diverdownhi 1 year ago

This did not work for me, but I did figure out how to downgrade my iPhone 3GS IOS version 4.0.2 without having my .shsh blogs saved and then the jailbreak worked fine.
- Reyrey 1 year ago
  
  Can you please tell me how to downgrade?
- Reyrey 1 year ago
  
  Can you please tell me how to downgrade i need to unlock my 3gs i have the new bootrom
- jjclag 1 year ago
  
  Diverdownhi,
  Would really appreciate if you can tell me how did you downgrade your 4.0.2 3gs iphone without the saved SHSH files. Like others I have my 3gs iphone accidentally updated to 4.0.2 from 4.0.1 without first saving the SHSH files. Now I find I cannot jailbreak it nor can I unlock it either. Thanks in advance for your assistance.
  
  jstar
diverdownhi 1 year ago

Will work on filming the process and get it out to everybody.
- mks222 1 year ago
  
  Hi riverdownhi, how is your process description going? I have major trouble getting my 3gs unbricked.
- John 1 year ago
  
  Thanks man, i don’t know much about this stuff, I restored and it upgraded firmware to 4.0.2 and not my phone sucks! If you could make a video explaining how to do it, simple and explained, telling what your doing and what program your doing it with would be much appreciated… I have windows and YouTube videos explaining how to do it on Mac don’t really help, email me at jsayde11@hotmail.com when your video comes out or if you’d tell me what to do that would be much appreciated, thanks in advance man
mks222 1 year ago

Doing a restore using this “cooked” ipsw file only gets me an “error 1600″ message (restore failed).
Readyred0321 1 year ago

Can’t seam to get the Tiny Umbrella downgrade to work I keep getting a error and its not the error that I’ve seen on youtube.
Cameo 1 year ago

When updating on itunes hold (options) for Macbooks and (Click Restore)
mason 1 year ago

i got error (1604) when used cooked .ipsw file. can someone please provide instruction. THX!
John Apatow 1 year ago

definitely didnt work my iphone makes a really high screeching noise now
E4K 1 year ago

Yeah this sucks! I up dated my 3gs 4.0.1 to 4.0.2 and cant down grade with tiny umbrella and the firmware from felixbruns. I keep getting the same error code (3002)
Chris Shorts 1 year ago

this does not got 1604 this is bull ok
Jared Sanders 1 year ago

Here is a custom 4.1 IPSW for 3gs.. confirmed working http://bit.ly/9FV3G0
keith 1 year ago

iOS 4.0 Custom Activated With Cydia for iPhone 3GS

This firmware only works with iPhone 3GS

Requirements:
iPhone 3GS
iTunes 10.0.1

Use iTunes to restore this firmware.

Download:
http://www.fileserve.com/file/revjPX8

100% working, enjoy
ricky 1 year ago

Have anyone tried these custom firmwares ?
looks risky
jonas 1 year ago

this is bull ppl! those are viruses!