How To Unlock iPhone 3G Firmware 3.0 Using Ultrasn0w
Well, Ultrasn0w is here and as the name suggests its the ultimate software to unlock your 3G iPhone. You need to have a jailbroken iPhone either done with redsn0w or Pwnage Tool and the baseband 04.26.08 i.e firmware 3.0. You can follow our guide on how to jailbreak iPhone 3G .

1. Launch the Cydia installer from your Springboard.

2. Select the ‘Manage’ at the bottom of the screen.

3. Select ‘Sources’ on your screen.

4. Select ‘Edit’ present at top right of the iPhone screen.

5. On the top left of the screen, select ‘Add’.

6. In The ‘Enter Cydia URL’ menu, enter http://repo666.ultrasn0w.com/ as the URL.

7. After the ‘Complete’ message, select ‘Return to Cydia’.
8. Select the ‘Done’ button on the top right of the screen.

9. Under the ‘Added by the User’ Sources, select ‘repo666.ultrasn0w.com’.

10. Select ‘Ultrasn0w’ from the screen.

11. At top right of the screen, Select ‘Install’.

12. Again at the top right of the screen, Select ‘Confirm’.

13. After the installation is complete, Select ‘Return To Cydia’.

14. Select ‘Home’ And Power Off your iPhone And then switch it On again. Now you should be able to insert any SIM card of your choice.

iPhone 3G is best phone ever released. it has great styling and has nice cool features that is why i like it so much.