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How to Jailbreak iPhone 3GS running iPhone OS 3.0 using Redsn0w (Mac)

Jailbreak iPhone 3GS using redsn0w on Mac

The iPhone Dev team had earlier announced that they will hold off on releasing their jailbreak for iPhone 3GS on OS 3.0 as they expect Apple to close the hole in their upcoming iPhone OS 3.1.

Here is our step by step guide on how to jailbreak your iPhone 3GS using Redsn0w for Mac users. Windows users can checkout this guide.

Before we start some important points:

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This one is only for iPhone 3GS users, if you are an iPhone 3G user, please check out our step-by-step guide to jailbreak iPhone 3G running iPhone OS 3.0 for Windows or this one for Mac users.
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This guide only shows you how to jailbreak iPhone 3GS, it does not unlock it.
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As with any hack, please proceed with caution as jailbreaking your iPhone could void its warranty.

Step 1: Create a folder called Pwnage on your desktop.

Step 2: Download redsn0w from here and put it in the Pwnage folder that you have just created.

Step 3: Also download the iPhone OS 3.0 firmware from the location below and put in under the Pwnage folder.

iPhone OS 3.0 (iPhone 3GS) – iPhone2,1_3.0_7A341_Restore.ipsw

Step 4: Extract the redsn0w executable (.exe) from the zip file into the Pwnage folder.
Jailbreak iPhone 3GS using redsn0w on Mac

Step 5: Now connect your iPhone 3GS to the computer and launch the iTunes.

Step 6: Select your iPhone from the list of devices mentioned on the left hand side.
Click and hold down Option and click the Restore button.
Jailbreak iPhone 3GS using redsn0w on Mac

Step 7: Go to the Pwnage folder. Select the firmware with the extension .ipsw and click the Open button to continue.
Note: If you are already on iPhone OS 3.0 then you may skip this step completely.
Jailbreak iPhone 3GS using redsn0w on Mac

Step 8: Once iTunes finishes updating your iPhone, launch the redsn0w.app from the Pwnage folder on your desktop.
Jailbreak iPhone 3GS using redsn0w on Mac

Step 9: After the redsn0w opens up click on the Browse button.
Jailbreak iPhone 3GS using redsn0w on Mac

Step 10: Now, select the firmware ipsw that you had placed into Pwnage folder and click Open button.
Jailbreak iPhone 3GS using redsn0w on Mac

Step 11: After the firmware has been verified, click the Next button to continue.
Jailbreak iPhone 3GS using redsn0w on Mac

Step 12: Make sure that you select the check box for Cydia and click the Next button.
Jailbreak iPhone 3GS using redsn0w on Mac

Step 13: Now redsn0w will instruct you on how to put your iPhone 3GS into the recovery mode.
Disconnect your iPhone from the computer and power it OFF.
Hold down the Home button while you reconnect your iPhone 3GS to the computer.

Note: Do not let go of the Home button until redsn0w detects your iPhone and begins the installation.
Jailbreak iPhone 3GS using redsn0w on Mac

Step 14: Your iPhone will now reboot itself.
Jailbreak iPhone 3GS using redsn0w on Mac

Step 15: redsn0w will then start to upload the new RAM Disk and the kernel on your iPhone.
Jailbreak iPhone 3GS using redsn0w on Mac

Step 16: redsn0w will notify you when it’s completed. Click on the Finish button.
Jailbreak iPhone 3GS using redsn0w on Mac

Step 17: Your iPhone 3GS should take about 5 minutes to reboot, and once it finishes rebooting it will be jailbroken with Cydia installed on the SpringBoard.

If you have problems with RedSn0w, you can try Purplera1n that was released by Geohot.

Please note that this guide only jailbreaks iPhone 3G running iPhone OS 3.0, you will need to install UltraSn0w via Cydia to unlock iPhone 3GS.

Download the latest firmware for your iPod, iPod Touch, or your iPhone 3GS. Resources for Unlocking, Jailbreaking and Restoring your iPod and iPhone.
http://www.ipod-iphone-firmware.com