Unlock iPhone 2G/3G with Firmware 3.1 on Windows

PwnageTool 3.1 was released earlier today by the dev team but the fact that it can only be used by Mac users and leaves no ticket for Windows users seems a little unfair, so we made things a little easy for you.

We created the custom IPSW for Firmware 3.1 on iPhone 2G and iPhone 3G which lets you update without having to meddle with the baseband. This Firmware comes with the stock Apple logo and Cydia. All you have to do is download it, restore it and that’s it.

For the iPhone 3G

Please use the links to download the custom IPSW of Firmware 3.1 for iPhone 3G labeled iPhone1,2_3.1_7C144_Custom_Restore.

http://bit.ly/iphone3g-custom31-sizlopedia

http://bit.ly/iphone3g-custom31-sizlopedia-p3

Once downloaded, join the file parts using HJSplit and extract the ZIP archive to have one file. Now follow the steps.

1. Please down and install iTunes 9, and then run it.
2. Connect your iPhone to the PC.
3. Click ‘Restore’ while holding SHIFT key and select the custom IPSW.
4. Once everything is processed and OS boots up, install Ultrasnow.
5. Follow this guide to install Ultrasnow on iPhone.

Now you have an unlocked iPhone 3G running on Firmware 3.1.

For the iPhone 2G

Please use the links to download the custom IPSW of Firmware 3.1 for iPhone 3G labeled iPhone1,1_3.1_7C144_Custom_Restore.

http://bit.ly/iphone2g-custom31-sizlopedia

http://bit.ly/iphone2g-custom31-sizlopedia-p3

Once downloaded, join the file parts using HJSplit and extract the ZIP archive to have one file. Now follow the steps.

1. Please down and install iTunes 9, and then run it.
2. Connect your iPhone to the PC.
3. Click ‘Restore’ while holding SHIFT key and select the custom IPSW.

As no Ultrasnow is needed, so you already done with everything. Notice that no bootloader files are required.

Thats pretty much all of it. Those on Mac can make use of the custom IPSW in case they don’t plan to get their hands dirty with PwnageTool which, to be honest, is not easy to go by due to lack of documentation. The Unarchiver can be used on the Mac to join the files and uncompress them.

Note: Please test and give us your feedback in the comments. Make sure not to ‘Update’ the Firmware at any step, only use the ‘Restore’ feature.

Related posts:

1. Download Ultrasnow to Unlock iPhone 3G on OS 3.0
2. Download Ultrasnow to Unlock iPhone 3G on OS 3.0
3. IPhone 3.0 firmware and Dev team unlock
4. How to Unlock iPhone 3G OS 3.0 with UltraSn0w
5. Unlock Iphone 3G