Unlock iPhone 3G, 3GS Baseband 05.14.02, 05.15.04, 06.15.00 with Ultrasn0w 1.2

iPhone Dev Team released Ultrasn0w 1.2 unlock for iOS 4.2.1.

To unlock your iPhone with iOS 4.2.1 or 4.1, you need to update your iPhone baseband to 06.15.00 from iPad iOS 3.2.2. If you want to be notified when the unlock for 4.2.1 directly without updating comes out subscribe our RSS feed , twitter or Facebook. You will get all the latest updates at both the places.

If your iPhone’s baseband is 05.14.02 or 05.15.04 you need to upgrade your baseband to 06.15.00. Click here to upgrade your iPhone baseband to 06.15.00 with PwnageTool or to upgrade iPhone baseband to 06.15.00 using redsn0w.
Once your device baseband is upgraded to 06.15.00, follow these steps to unlock iPhone using ultrasn0w 1.2.

These instructions will help you unlock iPhone 3G / 3GS with basebands:

  • 04.26.08
  • 05.11.07
  • 05.12.01
  • 05.13.04
  • 06.15.00

How to unlock iPhone with ultrasn0w 1.2 using cydia

1. Launch cydia on your iPhone

2. Select manage tab from the bottom options

3. Select sources button

4. click Edit button on top right of the screen

5. press Add button on top left of the screen

6. enter http://repo666.ultrasn0w.com/ as source url and press add source button (Note: ultrasn0w includes a letter 0 (zero) not alphabet o).

7. Once the source has been added, return to cydia

8. press Done on the top right of screen

9. Select http://repo666.ultrasn0w.com/ from the list of user entered sources in cydia

10. Select ultrasn0w from the packages list

11. Press Install button on top right of the screen

12. Press Confirm button on top right of the screen

13. Reboot the device once the installation completes successfully.

14. Reboot the iPhone again (recommended)

15. Insert sim of any carrier of your choice and confirm that it’s working perfectly.

Your iPhone is now unlocked successfully!


47 Responses to Unlock iPhone 3G, 3GS Baseband 05.14.02, 05.15.04, 06.15.00 with Ultrasn0w 1.2

  1. Agneta

    Ha ha… no problems, I still had 1 day until weekend. :)

    > I am going to up Your fund with $4 this weekend
    > as it saved me $8. :D

    They’re there now.
    Take care and Thank YOU!

    BTW, my iPhone 3G seem a lot faster now. Wonder if it was the unlock or carrier switch.

    As for the rest of the people here; If You got help — which You should if You followed the supplied instructions — I think You should go to great lengths in order to support Nabeel’s project.

    Live well!


  2. akram

    thanx very much i do it and its work…akram faraj in KURDISTAN of IRAQ

    • Dr. Nabeel

      you’re welcome Akram

  3. Bhai

    It worked for me as well. I just need to upgrade to 06.15.00.
    Great job. Thank you very much.

    • Dr. Nabeel

      glad to know it worked for you! hopefully your iPhone its still working perfectly!

  4. Jacob

    Marvelous!!!! After 1 whole week searching and troubles, also visiting a ” specialist” in Belgium who can’t restore my connection with my provider, your advise IS WORKING!!!!!
    Many many Thanks!!


    • Dr. Nabeel

      glad to know that your iPhone got unlocked Jacob

  5. news from My info

    That is very interesting, You’re an excessively professional blogger. I’ve joined your feed and sit up for seeking extra of your excellent post. Also, I have shared your site in my social networks

  6. John

    Can anyone help me? I just upgraded to baseband 6.15.00, and there is a cydia application icon in my apps. When I click on the cydia icon, there is a flash on the screen and it goes back to the same screen, nothing opens up. Does anyone know what i can do?

  7. Nabeel

    you probably need to redo the process, something went wrong (and keep multi tasking and background wallpaper off for 3G)

  8. Nabeel

    you’re welcome!

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