Unlock iPhone 3G With iPhone OS 3.1 Using Ultrasn0w

If you are looking to Unlock iPhone 3G With Firmware 3.1 using Ultrasn0w, then you can read the below article. But before that you need to read “Downloading PwnageTool to Jailbreak iPhone With iPhone OS 3.1” and “Jailbreaking iPhone 3G With iPhone OS 3.1 Using PwnageTool“. The PwnageTool 3.1 is available for Mac and can be used to jailbreak iPhone 2G, iPhone 3G and iPod Touch 1G. So once you have a jalibroken iPhone you can follow the below steps to unlock iPhone 3G using Ultrasn0w.

• Go to http://repo666.ultrasn0w.com from Sources >> Entered by User and select Ultrasn0w from the list.
• Click the Install button at the top right of the screen and then press the Confirm button at the top right of the screen.
• After the installation is done click the Return to Cydia button.
• Press the Home button, power off and on the iPhone by holding down the power button and moving the power slider that appears to the right. Press the power button again to turn on the phone.
• Now your iPhone is unlocked which means that you can use any SIM