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

50 comments

1. My cydia can't find that ultrasnow.
   Why..?

2. It's ultrasn0w with a Zero not an O.

3. Xavier.. I havent tried it out but I think you need to enable WIFI, and be in a WiFi spot, beeing connected and then Cydia will find…. need internet connection… at least I think so

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5. hey mate just want to thank you for your help, first time at jailbreaking and unlocking an i phone, seems i picked the busyest day to try! thanks for your help as i am now all up and running on voadaphone with a orange 'only' iphone ;p cheers again!!

6. You're welcome =]

7. Will it unlock bootloader 6.02?

8. can i still update it to OS4?

9. Yup

10. Dear Senior:
    How can i activate my new Iphone 3GS 3.1.3 before able to jail break it?

11. i'm getting errors with ultrasn0w. Says it can't update celluar data and some other various ultrasn0w errors…any advice?

12. Has anyone successully unlocked their phone yet on 3GS 3.1.3 (7E18) modem 5.12.01?
    Secondly where to find ultrasn0w 0.93 ?

13. Yes. it is working, My Iphone now unlock

14. Imran, Thank you for your help, My iphone now unlocked after I follow your instruction

15. You're welcome :). Glad to have helped.

16. many thanks for your help !!!!!!!!

17. will this unlock bootloader 6.02?

18. yes i did! and it worked!

19. thanks soo much!!! =]

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22. Gracias muchachos!

23. Halelluya, I really looooooooove you guys.You guys roooooooock!!!

24. It took just five minutes to jailbreak & unlock. LOOOOOOOOVE you guys. You GuyS ROOOOOOOOCK!!!.

25. Ruben, thxs. I will really appreciate if you could send me link to software you used like spirit and untrasn0w? How do you cydia on your iphone? sorry to be naive but your help will be appreciated.

26. Mindblowing .. wonderfull thanks a lot …. for all of you who have contributed….
    my iphone ius back alive after 5 months…..

27. yes yes yes finally i unlock my iphone 3g 05.12.01 / 3.1.3 just today using ultrasn0w from cydia weeeeeeeeeeeeee!!!!!!!!!!!!!!!!
    how nice.thanks to the dev team.cheers

28. VERY EASY VERY GOOD UNLOCKING THANK YOU VERY MUCH FOR YOUR ADVICE

29. Will this work with ITunes 9.2????

30. Still not working for me. I have Jb'd have cydia. Installed ultrasn0w. Rebooted. Accepts sim with carrier logo but with no reception all calls fail. Plzzzzzzzzzzz help

31. If your SIM is bring recognized then it's unlocked. I don't see why
    you have a reception problem. Try rebooting or rejailbreaking.

32. Tryd rebooting. No joy. It's even showing my carrier logo and 3g on any sim I put in!! Just won't allow reception. All calls fail.
    Frustrating. Will try re-jb and re-do all steps
    thanks

33. I Rebooted and would not recognize the carrier, so I pulled the sim and installed again and it worked!!!! I mean it really worked!!!!!!!!!!! THANK YOU 2 MILLION TIMES!!!@!@!!!!

34. I know you all are having luck but i wanna make sure that when I follow the steps for my 3g with 3.1.2 and 05.11.07 that after I do the 4.0 OS with the custom restore ipsw that it will re-unlock for me with ultrasnow…

35. worked like a charm. Thank you. Wish there was something that I could do to return the favor.

36. hey pls help me i m not recognize the carrier…i tried all Sim card i belongs to India…n calls from last 5 hours…

37. You aren't the only one having this problem (try searching the issue). I get exactly the same sympoms. 3GS, baseband 05.13.04 on Virgin (operated by T-Mobile). Tried every suggestion I could find (inlcuding disabling 3G)

38. so how do u install ultrasnow without internet/wifi? help plz i am a noob iphone user

39. Worked both JB and unlocked. 3gs 3.1.3 5.12.01 thanks!!!!

40. Hey guys im having a problem with finding ultrasn0w on cydia. It tries to download it but it gives me errors saying “the host couldnt be reach”

    Can anyone help me?

    1. I have the same problem, try to add the repo666.ultrasn0w.com and it says it “did not find repository”, how do i fix this???

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42. 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

43. 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!!

44. i have same problem what u do ? resolve?

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

    then search for the ultrasn0w.. and install

    it worked for me.. same specz

46. 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.

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

48. try using .org
    that's what they've mentioned on twitter even though with me, the .org repo is not working as well.

49. 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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