How to Use Redsn0w 0.9 to Jailbreak iPhone and iPod Touch With 3.1.2 Firmware

Written By Sam on 22 January 2010
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redsn0w is a cross-platform jailbreaking, unlocking, and customizing tool for iPhone and iPod Touch. Using redsn0w you can customize your iPhone which include boot logos, recovery logos, and “verbose” boot. The other good thing about redsn0w is that it is a standalone program that doesn’t use iTunes as there are no custom IPSWs involved. The latest version of redsn0w, redsnow 0.9 beta 3 for Windows and Mac can be used to jailbreak your iPhone and iPod Touch on 3.1.2 Firmware.

Procedure to jailbreak iPhone 2G, 3G, 3GS and iPod Touch with 3.1.2 firmware using redsn0w

  • Download the latest version of iTunes and update your iPhone to the latest 3.1.2 Firmware if you haven’t already done it.
  • Download redsn0w 0.9 for Windows or Mac based on your OS and also download iPhone OS 3.1.2 IPSW file.
  • Now run redsn0w and browse to the original iPhone OS 3.1.2 .ipsw file. Redsn0w will check if the firmware is valid and will then patch it.
  • How to Use Redsn0w 0.9 to Jailbreak iPhone and iPod Touch With 3.1.2 Firmware
  • If you are a iPhone 2G user you need to select “Install Cydia” and “Unlock” to unlock your iPhone 2G. If you have a iPhone 3G or iPhone 3GS you just need to select “Install Cydia“.
  • If you are interested in customizing your iPhone you can choose any/all of the “Verbose boot”, “Custom boot logo” and “Custom recovery logo”, else you can skip this step.
  • Now redsn0w will show you some instructions to enter into DFU mode.
    • Hold down the “Power” button and immediately without releasing the power button, also hold down the “Home” button. Without releasing the “Home” button, release the “Power” button but keep holding the “Home” button for 30 seconds.
  • Your iPhone will reboot once it is jailbroken

If you need to unlock your iPhone to use it with any carrier, then you can read the below unlocking guides.

Unlock iPhone 3GS and iPhone 3G with 3.1.2 Firmware Using Ultrasn0w
Unlock iPhone 3GS and 3G With 3.1.2 Firmware and 05.11.07 Baseband Using blacksn0w

3 Responses to “How to Use Redsn0w 0.9 to Jailbreak iPhone and iPod Touch With 3.1.2 Firmware”

  1. JP says:

    THIS IS GREAT I HAD MY IPHONE LOCKED SINCE 5 DAYS AGO TRYING EVERYTHING THIS PAGE AND REDSNOW GAVE ME THE MIRACLE THANKS FOR SHARING WISDOM ILL PASS IT FOR OTHERS NEEDING HELP TOO..

  2. dieter says:

    This is silly but I didn’t hid the warning. I found out after I sync my 1st generation iphone. I jailbroke/unlocked my 2g a few years back and for some dumb reason decided to update with Itunes 3days. lost everything now i’ve spent hours try to unlock/jailbreak but no success. Help!! My iphone being the older gen probably won’t be priority..but I’ve seen a few people out there with this problem. Anybody figure this out?

  3. Parikshit Shinde says:

    THANKS A TON!!!!!….I was been struggling for 2days to sort the 3.1.3 firmware horror…this info came as an rescue for me….Once again thanks a LOT.

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