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Jailbreak / unlock iPhone 3GS on Mac

Learn how to jailbreak iPhone 3GS with PwnageTool & unlock iPhone with UltraSn0w on Mac

George Hotz has finally come up with Mac version of BlackRa1n jailbreak on Oct. 14th, 2009, but BlackRa1n requires you to update your iDevice to OS 3.1.2 and then jailbreak it, which means your Baseband will be updated and would not be able to unlock your iPhone later. PwnageTool, on the other hand, creates a custom firmware which preserves your Baseband from updating so that you may unlock your iPhone later if you want to.

So, We strongly recommend to use PwnageTool if you want to unlock your iPhone after jailbreaking it because PwnageTool does NOT update your iPhone Baseband. In this guide you will learn how to jailbreak iPhone 3GS, 3G running OS 3.1.2 using PwnageTool 3.1.4 on Mac OS X. This guide is for Mac users only because PwnageTool is available for Mac only and there’s no Windows version out there.

Step 1 Download Pwnage and latest iTunes

Please update your iTunes to latest version and backup your iPhone first. Create a folder on your desktop and name it: Pwnage. Then download the following files and put them into Pwnage folder:

PwnageTool 3.1.4: Rapidshare
for 3GS: iPhone2,1_3.1.2_7D11_Restore.ipsw or
for 3G: iPhone1,2_3.1.2_7D11_Restore.ipsw

Double click PwnageTool_3.1.3 dmg file to mount it. Click and drag the PwnageTool icon to Pwnage Folder you created and then open it from there. Warning Box will Popup. Just hit the OK button.

Step 2 Select Expert mode and device

Make sure you select Expert Mode from Top menu. Select your device, a big Green check mark will appear on the selected device. Now hit the big Blue Arrow button at bottom right to proceed.

Step 3 Browse for IPSW

On the next page, PwnageTool will automatically find the IPSW file. If not found then click “Browse for IPSW” button and select the downloaded IPSW file from the Pwnage folder. A check mark will appear next to it. Then hit Blue Arrow Button to proceed.

Step 4 Firmware cutomization and Cydia settings

On the next page you will have 6 choices. Select the General and hit Blue Arrow Button to proceed.

Please read carefully about selecting activate the phone option. You will know you didn’t choose the right option if you don’t have signal after jailbreaking. On the next Page you can decide your Root Partition Size where OS resides. Click activate the phone (only if you’re on unofficial carrier).

Tip: Deselect Activate the phone option if you are on official carrier. For the 3.1.2 firmware you may have to increase the size of your root partition slightly for the IPSW build to be successful. may be 700MB.

The Bootneuter settings are greyed out for the iPhone 3GS and 3G. Click the blue arrow button and you will see Cydia settings menu. It allows you to create custom packages so you do not have to manually install them later. Go to Download packages tab.and hit the Refresh button to display all the available packages. Double click your desired package, it will be downloaded and will be available under the Select Packages tab.

When you have downloaded your desired packages, go back to Select Packages tab and check mark the ones you want. then hit the Blue Arrow Button to proceed. Custom Packages Settings will displays listed package settings for your custom IPSW. Leave these settings as is for now. Just click the Blue Arrow Button to proceed. On the next Custom Logos Settings menu, you’ll be able to add your own images as boot logos. Click the Browse button to select your Boot logo and Recovery logo. I just use defaults so deselected all options.

Step 5 Build your custom firmware

Now you are ready to build your custom firmware. Click the build button to select it, then click the blue arrow button to proceed.

You will be asked to Save your custom .ipsw file. Save it to the same Pwnage folder.PwnageTool will start building your custom firmware. Wait until it’s done. If prompted enter your Administrator password and click the OK button.

Step 6 Turn off the device

You will be asked to turn OFF the device. Make sure it is connected to the USB port.

NOTE: If you’re already jailbroken (by whatever means), you don’t need to mess around with DFU mode at all. Just create (or get from a friend) your custom IPSW and Option-Restore (Shift-Restore on Windows) to it via iTunes. Don’t enter DFU mode at all. Please make sure you are restoring to the custom IPSW, not the stock one from Apple! For best results, use the latest iTunes (9.0.1) — which includes a nice new application organizer.

If it’s the first time you’re jailbreaking your iPhone, Be ready to follow directions now to get into DFU Mode.

You will be asked to hold the home button and the power button for 10 seconds.
Then, you will have to release the power button and hold the home button for 10 seconds to enter DFU.

Step 7 Restore the firmware on iPhone

In iTunes, hold the Alt/Option key and hit Restore. From the popup window, browse to the Pwnage Folder and select you custom .ipsw file that you just created and click Open Button. iTunes will now restore the firmware on your iPhone. This can also take up to 10 mins.

Step 8 Unlock your iPhone 3GS with UltraSn0w

After the last auto reboot, your iphone has been jailbroken, open the cydia and add repo666.ultrasn0w.com to your sources.(The “0” of sn0w is zero)

Install ultrasn0w and reboot it

Your iPhone is unlocked!

You have successfully Jailbreak and unlock iPhone 3GS/3G running iPhone OS 3.1.2. But please note Jailbreak is illegal !