How To Jailbreak iOS 4.3.1 Untethered With PwnageTool 4.3 On Mac


by casey on April 5, 2011

As we already know iPhone Dev Team has released PwnageTool 4.3 for untethered iOS 4.3.1 jailbreak. The tool works on iPhone 4, iPhone 3Gs, iPad 1, iPod Touch 3G, iPod Touch 4G and Apple TV 2G. Remember its not compatible with iPad 2 device. PwnageTool helps you to preserve your baseband for iPhone 4 and iPhone 3GS so that you can unlock it using Ultrasn0w. We are here to show you a HOW TO GUIDE.

NOTE: If your iOS device is not relying on carrier unlock, we recommend to use Redsn0w 0.9.6 RC9 for Windows and Mac as that was much easier for untethered iOS 4.3.1 jailbreak. You can get that step by step guide posted here.

Remember the exploit used by iPhone Dev Team behind Redsn0w 0.9.6 RC9 is originally developed by Stefan Esser who is a security expert. Previously he handed over his exploit to the iPhone Dev Team. So a great thanks to Stefan Esser.

Although iOS 4.3.1 Jailbreak was already possible but that was TETHERED using Sn0wbreeze 2.4 and PwngeTool. Now this time they have released the untethered version.

PwnabeTool is for Mac users only. If you are a windows user you can use Sn0wbreeze 2.5.

HOW TO GUIDE TO JAILBREAK iOS 4.3.1 With PwnageTool 4.3 On Mac OS




  • Launch PwnageTool 4.3 application that you have download. First it will show you a warning. Ok to proceed.
  • Select ‘Expert Mode’ from top.
  • Select you device and proceed.

PwnageTool 4.3 Untethered iOS 4.3.1 jailbreak - 1


  • Browse iOS 4.3.1 IPSW firmware file for you iDevice that you have placed on Desktop.

PwnageTool 4.3 Untethered iOS 4.3.1 jailbreak iPhone iPad iPod Touch


  • Select ‘Build’. It will start creating a custom firmware 4.3.1 firmware for you.

Build custom firmware iOS 4.3.1


  • It will prompt you once custom firmware IPSW iOS 4.3.1 files is created.
  • Save it on the desktop.

Custom IPSW 4.3.1 file


  • After that PwnageTool will ask you to put you username and password of your system. Type the credentials to proceed.


  • Now you have to put you device in the DFU mode.
  • For that press and hold POWER and HOME button for 10 seconds.
  • Now let go the POWER button and keep on holding the HOME button for 10 seconds again.
  • You device will go into the DFU mode.

PwnageTool 4.3 Untethered iOS 4.3.1 jailbreak - 8

How To enter DFU Mode

DFU Mode


  • Launch iTunes 10.2.1 application.
  • Under iTunes, select your iOS device from the sidebar.
  • Now press and keep on holding the ‘Alt’ button on your Mac and click the “Restore” button (Do not ‘Update’ or ‘Check for updates’ in the iTunes). and then release the button.
  • Now select the location of your custom firmware 4.3.1 that you want to restore that you have created in the end of STEP 6 and placed to the Desktop.

iTunes Jailbreak

STEP 10:

  • Let the iTunes do rest of the process for you. It will do few automated steps.
  • Do not try to interrupt it in the middle. Let it to take its time.
  • It will be showing you a progress bar. Once its installed, your device will be jailbroken with iOS 4.3.1 firmware installed in it.

Thats It !!! Congratulations!!! You have successfully jailbroken iOS 4.3.1 using PwnageTool 4.3.

How To Unlock iOS 4,3.1 iPhone 4 3GS With Ultrasn0w Fixer [How To Guide]

Ultrasn0w iOS 4.3.1 as they have promised is released. It will be compatible with basebands which includes 01.59.00 / 04.26.08 / 05.11.07 / 05.12.01 / 05.13.04 / 06.15.00.

Update: Ultrasn0w 1.2.1 Unlock iOS 4.3.1 iPhone 4 and iPhone 3GS

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  • wader

    great tutorial. I only get one bar and no carrier without installing the ultrasn0w fix. Once I’ve done that I still don’t get visual voicemail. Hopefully this’ll be fixed in short order. At least I’m still at 1.59.00.

  • harry

    great work. thank you!

  • G_nirujan

    will this work now? i mean ios 4.3.2 is released will i get any problem when restoring with itunes?? please help me out. Thanks.

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