|The Apple iPhone 3G is one of the most versatile smart phones on the market. However, it is only available on AT&T in North America and select carriers worldwide. You can unlock a 3G iPhone and remove the SIM card restriction so that it will work on other 3G networks. In order to unlock an iPhone, you must first jailbreak the iOS device.......Read more|
- Install the latest version of iTunes. You should first check the Dev-Team Blog website (see Sources) to verify that the latest versions of their jailbreak tools are compatible with the latest version of iTunes.
- Obtain a download bundle for the latest iOS version. Jailbreak tools usually are written for the latest version of iOS.
- Conduct an Internet search for "Download iOS for iPhone 3G."
- Select a reputable site (such as ihackintosh.com) and download the appropriate .ipsw file for your 3G. If you are an iPhone developer, or know someone who is, you can obtain this file through the Apple iOS Developer Program.
- Save this file in an easily accessible location, such as your Desktop folder.
- Download the latest version of PwnageTool.
- Make sure you have torrent software installed so that you will be able to download the necessary installation files.
- Go to the Dev-Team Blog.
- Click the "PwnageTool Info" link and follow the instructions for downloading the executable.
- Once downloaded, launch the installation file and follow the prompts.
- Launch PwnageTool.
- Select the 3G image. Click the next arrow.
- Select the .ipsw bundle that you downloaded in Step 2. Once the software finds the file, it will prompt you to create an .ipsw bundle that you will use to jailbreak the iPhone.
- Follow the onscreen prompts to put your iPhone 3G in Device Firmware Recovery (DFU) mode.
- Open iTunes to complete the iPhone jailbreak.
- iTunes will detect your iPhone in "recovery mode." Click "OK" to dismiss the popup.
- On the Devices menu, hold down the Option or Alt key (depending on if you are on Apple OS X or Microsoft Windows) and click "Restore."
- You should now be prompted to select the .ipsw file you wish to restore from. Select the file you created with PwnageTool (the file name should end with "Custom_Restore").
- iTunes will restore your iPhone 3G using the custom firmware you created. Once this process is complete, you can safely backup your device and sync your personal information using iTunes.
- Launch the Cydia application on your iPhone and search for ultrasn0w. Once found, install ultrasn0w on your device. If ultrasn0w doesn't appear in your search results, follow these steps:
- Click the "Manage" button on the Cydia home screen and then select "Sources."
- Click "Edit" and then "Add."
- Enter "" http://repo666.ultrasn0w.com" into the Cydia/APT URL field and click the "Add Source" button.
- Once Cydia verifies the URL that you have entered and registers the repository URL, return to the Cydia homescreen and continue installing ultrasn0w.
- Wait for your iPhone 3G to reboot. Once ultrasn0w completes the unlocking process, you can use any carrier's SIM card with your device.
- If you wish to restore your iPhone to its factory settings after unlocking, use the Restore button in iTunes. Please note, you will lose all personal data, information and applications. You will no longer be able to use applications that were available on your jailbroken iPhone.
- Apple frequently includes in iOS updates "plugs" for software holes exploited by jailbreak programs. After jailbreaking your iPhone, do not use iTunes to update your device. Check the Dev-Team Blog frequently to determine when and where you should download updates for your device.
- Jailbreaking and unlocking an iPhone are not activities sanctioned by Apple or any of its service partners. If you experience difficulties with your iPhone after unlocking, you must restore it to its factory settings prior to bringing it in for service. While jailbreaking and unlocking an iPhone is legal, Apple considers these actions violations of their end-user license agreement and may deny any service claims.
Sources and Citations
- Dev-Team Blog: http://blog.iphone-dev.org/
- Apple Support Article regarding "Unauthorized Modification:" http://support.apple.com/kb/HT3743
Article provided by wikiHow, a wiki how-to manual. Please edit this article and find author credits at the original wikiHow article on How to Unlock the iPhone 3G. All content on wikiHow can be shared under a Creative Commons license.