1. marquisdeon05's Avatar
    Can i unlock or jailbreak my iphone 4? Its baseband is 04.11.08 I just want to unlock it for tmobile..
    10-17-2011 11:19 PM
  2. iRandom's Avatar
    You might be able to use the Grevey SIM, but I'm not entirely sure.
    10-18-2011 06:46 AM
  3. Snownation's Avatar
    You can't as of this moment.
    That BB is iOS 5, and no Gevey can unlock it at the moment.
    10-18-2011 07:46 AM
  4. Stromie's Avatar
    I also have an IPhone 4 with iOS5 and interested in unlocking for T-Mobile.

    Does each IPhone come with a different baseband?
    10-18-2011 09:31 AM
  5. Wiltron's Avatar
    Does each IPhone come with a different baseband?
    No.. your BB is updated with each iOS version released, and is the same across the entire iPhone platform per device - 3GS may be different from 4, but a tmobile vs AT&T iPhone 4 will be the same.
    marquisdeon05 and Stromie like this.
    10-18-2011 09:59 AM
  6. Stromie's Avatar
    So if my iPhone 4 runs on iOS 5 already and I want it unlocked, what is the intent here with regards to baseband: do I want to enter a new one, or try to preserve the existing?
    10-18-2011 10:07 AM
  7. Wiltron's Avatar
    If you've already upgraded to iOS 5, you've locked yourself into the current baseband, and to date the only way to unlock it is to use Ultrasn0w, and that only works if your baseband is:

    iPhone 4 - 01.59.00
    iPhone 3/3GS - 04.26.08, 05.11.07, 05.12.01 and 05.13.04

    If your BB is any of the above, you can unlock successfully with a jailbreak and download of ultrasn0w, which are both free..
    10-18-2011 10:22 AM
  8. Stromie's Avatar
    If you've already upgraded to iOS 5, you've locked yourself into the current baseband, and to date the only way to unlock it is to use Ultrasn0w, and that only works if your baseband is:

    iPhone 4 - 01.59.00
    iPhone 3/3GS - 04.26.08, 05.11.07, 05.12.01 and 05.13.04

    If your BB is any of the above, you can unlock successfully with a jailbreak and download of ultrasn0w, which are both free..
    is ultrasn0w app responsible for both jailbreaking and unlocking, or just unlocking?
    10-18-2011 10:28 AM
  9. Wiltron's Avatar
    Just unlocking, as in order to get it, you need to be jailbroken already.

    As of this post date, there are only tethered jailbreaks available, which mean you need to plug it in to a computer every time you reboot your device, or it remains in an unusable state requesting you restore it in iTunes (and essentially removing the Jailbreak). An Untethered jailbreak has no limitations, and is currently being held hostage by ic0nic, to be released shortly.

    Redsn0w available in beta form from Dev-Team Blog
    10-18-2011 10:34 AM
  10. marquisdeon05's Avatar
    Thanks Guys
    10-18-2011 11:42 AM
  11. Stromie's Avatar
    wanted to share a new piece of info i stumbled upon on the internet, that some folks restored their iphone 4 with I-Tunes version 10.4 and that brought them back to iOS 4.3.5 and BB 4.10.01...and that BB can in fact be unlocked via Gevey "Blue" Ultra Sim... Then a few days later there was a comment from someone that it was no longer possible... I am at work right now but may try at least restoring tonight.....if anyone else wants to do it, please share your results on here with others.
    10-19-2011 01:28 PM
  12. Stromie's Avatar
    alright guys just reporting of unsuccessful attempt to restore...here's the blog that describes my ordeal of restoring to 4.3.5 on I-Tunes 10.4 32-bit Windows version


    Unlock for Baseband 04.11.08 | Iphone 4 Problems


    I dont know if anyone else may tries the same, but giving myself a week to wait for a new unlock app...
    10-19-2011 08:54 PM
  13. aarlene's Avatar
    Hi,
    You can unlock your iPhone 4 using Remote unlocking service!!! Many reliable online sites offer these unlocking service!! I've experienced prounlocking.com , here they provide best unlocking service at reasonable cost!!!
    06-26-2012 07:37 AM
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