iPhone 4, 3GS & 3G Unlock – ultrasn0w 1.0-1

Dev TeamThe iPhone 4 unlock is ready! Remember, unlocking is different from jailbreaking. Unlocking lets you use your iPhone on other carriers. Of course, in the US the only other carrier that works with the iPhone is T-Mobile. This unlock is done by first jailbreaking the iPhone allowing applications to be installed that Apple doesn’t approve of. Then, in Cydia, you will need to add this source: repo666.ultrasn0w.com Then you can install ultrasn0w.

ultrasn0w 1.0-1 is compatible with iPhone4 on baseband 01.59 and 3G/3GS basebands 04.26.08, 05.11.07, 05.12.01 and 05.13.04.


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  1. Can anyone help me regarding my question?
    I do have an Iphone 3 GS that runs FW 3.1.2, Baseband 05.11.07….unfortunatly I do not know if my iphone is unlocked out of the box or if it is necessary to activate it after updating to 4.0.1. As I know there is no hacktivation possible if not done with the original simcard the iphone is originally locked to. But how do i know? I do have an old AT&T Simcard that was sent with the Iphone when I bought it (i actually use an italian carrier) but when I insert the AT&T simcard into my iphone it says: No Simcard installed.

    Now to my question: How do i know, if the originally AT&T simcard lets me activate my iphone after updating it? Can anyone help me?

    Thanks a lot

    • Dude just borrow the simcard who has at&t installed simple ur phone will be activated

    • Its just not that easy to find someone with an AT&T Simcard here in Italy :). Thats why I asked if there is maybe a possibility to find out if that simcard isn’t working or if there is any other possibility to know if my Iphone would need an hacktivation.
      Maybe someone else can help?


    • Maybe you can buy another sim card (pay as you go) and pop it in and see if it picks up a signal…If it says no service then it is not unlocked,but if it does pick up something,then it is…

      All the way from California,you are far from me to help you physically.

  2. GUYS! Come on, report on ‘Notified’ already. This is going to be the next big jailbreak app and yet nothing. I’m disappointed.

    • BDog_Grizzly says

      What do you mean? Like is it an actual Jailbreak? Or just an app for already JailBroken devices?

  3. SORRY! It’s an app, a massive leap forward for iOS notification system.


    • I’ve got it installed and will do a review soon. Testing right now. Thanks for the tip. Do you have Pro version?

    • I do have the Pro version Doug, it’s nice, but buggy right now. The only real difference (although a very nice difference) is the ability to view the log anywhere very akin to sbsettings. Sometime today the add-on which makes the notification more Palm Pre like (bearable) is expected to hit the fan, I am understandably excited to give it a try.

      Also, I wasn’t so much as disappointed in you guys, more just overly excited about the notified project.

  4. Kristopher Andrew says

    My friend has a old 3G iphone and currently uses att with another phone.. If he were to unlock it and put his sim card from his phone that he is currently using can he use the iphone without having to have a iphone data plan and just use it as a phone for calls and texting?

  5. Hi guys, I’m hoping you can help me out here. I have a jailbroken iphone 3GS 3.1.3 and am attempting to unlock with ultrasn0w. However when I attempt to install ultrasn0w I get an error message…”Note: The requested modifications cannot be applied due to required dependencies or conflicts that cannot be automatically found or fixed. Depends mobilesubstrate>=0.9.3209-1″

    Anyone know what this means and how to fix it?

    • I got the same problem and I don’t know how to fix it. So if anyone knows please post!

    • I have a jailbrooken iphone 3G OS4.1 with baseband 6.
      And when I try to install ultrasnow I get the same error. I’m in India.
      I really need HELP.

  6. Hey guys. I need help. My visual voicemail is not working. I can still receive voicemail the old way if have to dial 1. But no notification whatsoever that I received a voicemail. I tried calling AT&T and they reset my network settings but still can’t receive any visual voicemail. Does anyone experience the same thing since you unlock or jailbreak your phone? Any help is very much appreciated. Thanks in advance.

  7. hi i have a iphone 3G jailbroken 4.1 but i cant unlock my phone
    im on baseband 05.14.02
    please help!

  8. how to fix my iphone 3gs re: it does not turn on nor there is any screen display. i tried to connect it to my computer and run diagnostics using the apple itunes still it can’t be identified/recognized. hope you could help me. thanks

  9. Will this unlocked ph work in India?

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    iPhone 4, 3GS & 3G Unlock – ultrasn0w 1.0-1 | Apple iPhone School