How to unlock baseband 05.12.01 on iPhone OS 3.1.3 with ultrasn0w 0.93 [Guide]

iPhone

For all of you who have been waiting with locked iPhone 3G/3GS since ages just because they upgrade their basebands with iPhone OS 3.1.3, the time has come for you to unlock your phones thanks to ultrasn0w 0.93 update by the iPhone Dev team. ultrasn0w 0.93 unlocks basebands 04.26.08, 05.11.07, 05.12.01 and 05.13.04. Here’s a guide on how to jailbreak and unlock your iPhone 3G/3GS with iPhone OS 3.1.3!

  1. Jailbreak your iPhone 3G/3GS with Spirit. This tool works with OS 3.1.3. Check out our guide here.
  2. Open up Cydia and tap the Manage button at the bottom. Tap sources, press the edit button on the top and then tap add. Type this repo address in the sources: http://repo666.ultrasn0w.com as shown below. IMG_0180.PNG
  3. Tap Add Source and wait for it to upgrade.
  4. Search for ultrasn0w in the search tab at the bottom. Tap it and press install at the top. IMG_0181.PNG
  5. Wait for it to install and then reboot your iPhone 3G/3GS. When it restarts, you should be able to use it with any carrier you want!

Enjoy!

iOS 4 was released to the public today and already ultrasn0w has been updated to unlock basebands 04.26.08, 05.11.07, 05.12.01 and 5.13.04! The jailbreak tool for iOS 4 isn’t out yet but when it is, we’ll post a complete guide for it! Stay tuned.

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50 comments

  1. Pingback: Jailbreak your iphone 3G with IOS4 and Multitasking | Blog Engage

  2. 3G, IOS4, 05.13.01, 5.09, JAILBREAKED WITH ULTRASN0W LATEST VERSION, I OPEND CYDIA AND TRIED TO ADD repo666.ultrasn0w.com. but i get error message “repositries not found” please advice what to do

  3. dude, i was trying to jailbreak my iphone with a 100 programs but i didnt work out until i eventually tried yours. took me 5 minutes!!! thanks so much and keep up with the awesome work!!

  5. add a new source: apt.macosmovil.com

    then search for the ultrasn0w.. and install

    it worked for me.. same specz

  6. 3G, IOS4, 05.13.01, 5.09, JAILBREAKED WITH ULTRASN0W LATEST VERSION, I OPEND CYDIA AND TRIED TO ADD repo666.ultrasn0w.com. but i get error message “repositries not found”. I am also struggling to find the ultrasnow download in cydia as shown above.. please advice what to do.

  7. I have been getting the exact same msg's.. have you found a solution to your problem yet by any chance..??

  9. Worked like a charm on Aug 3rd 2010 with the links provided in this post. Follow them exactly and it works. I got my phone in Japan and needed to use it in the US and was able to get AT&T working just fine. Thank you very much for your invaluable help.

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