How To Jailbreak iPhone OS 3.0 On Windows and Mac Using redsn0w

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Use this guide to jailbreak your iPhone 3.0. Please read the requirements before starting.

This guide works on both Windows and Mac. Mac users have a second jailbreak option, because they can use the already released pwnagetool 3.0.

    Keep the following in mind before you begin (as of time of this post):

  • redsn0w is available for Windows and Mac and this guide is applicable to both.
  • The newest version of iTunes, iTunes 8.2, is required.
  • You can only Jailbreak your iPhone 3G and 3GS using this tool.
  • You can Jailbreak and Unlock your iPhone 2.0.
  • You can Jailbreak iPodTouch 1.0.
  • You must restore your iPhone to the latest firmware 3.0.
  • redsn0w does not work properly on Vista 64 bit.

Here’s how it works:

All this steps are prerequisites to unlock your 3G phone


How to Unlock iPhone 3G and 3GS Using ultrasn0w


1. Make sure you have the newest iTunes (iTunes 8.2)

2. Back up your iPhone

- Connect your iPhone to iTunes

- Put your phone in airplane mode (calls/texts disrupt the process and make you start over)

- Right click your iPhone

- Press Back Up

3. Download the files 

Windows redsn0w-win_0.8.zip

Mac redsn0w-mac_0.8.zip

In a future look here for latest file versions.

Latest Firmware Files for your iPhone or iPodTouch (iPhone OS 3.0)

4. Connect your iPhone to iTunes, select your device and Hold Shift and Click Restore

- This step is only needed if you do not run iPhone 3.0 already.

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This step just insures that you have the 3.0 firmware on your iPhone.


5.  Locate downloaded redsn0w files, unzip and start it

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6.  At this point just follow the redsn0w software prompts



- Click browse so you can select iPhone 3.0 IPSW file


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- Make sure you pick the correct file for your iPhone


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- After, IPSW selection redsn0w will identify and process the file

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- On this screen keep Cydia if you want it installed (you do)


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- Connect your iPhone to USB cable and turn the iPhone off.  Follow the instructions on the screen:


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- This one is tricky, timing is everything. If you missed the timing just click “Back” and start over.


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- Jailbreaking process has started. 


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You are done when you get a screen with the message “DONE!”


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Press “Finish”, and let the installation continue on your iPhone. It is entirely automatic from this point. 


If it does not work, or redsn0w is stuck, you probably did not get into DFU mode properly.

Turn your phone back on and start over.



Just in case follow these instructions: How to recover your iPhone


Tell as about your experience, and feel free to ask questions…we answer them :)


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