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Thread: I want to upgrade my 3G 3.1.2 unlocked with UltraSn0w Baseband 5.11.07 Confusing!!

  1. #1
    Default I want to upgrade my 3G 3.1.2 unlocked with UltraSn0w Baseband 5.11.07 Confusing!!
    I have performed several jailbreaks and unlocks in the past with no trouble.

    I have recently been having problems with my current install (particularly with EDGE and MMS) so I want a fresh restore. I can not figure out which programs to use.

    I have read all these things and I am lost:
    Redsn0w doesn't work for Ultrasn0w
    Blackrai1n is outdated I should use Sn0wbreeze
    Limera1n won't work with an Ultrasn0w unlock
    Upgrading to 4.1 with an Ultrasnow unlock will ruin 5.11.07 baseband



    I have a 3G iphone, firmware 3.1.2 installed, and baseband 5.11.07. I want to perform a restore, and I don't care if I have firmware 3.1.2, 3.1.3 or 4.1

    Please help, what jailbreak/unlock tools should I use in order to upgrade and not ruin my baseband?

    Thank you in advance.

    *edit: I may be unlocked with BlackSN0W... so effing confusing
    Last edited by flyblackboxflyblackbox; 2010-10-12 at 09:37 PM. Reason: Automerged Doublepost

  2. #2
    Retired Moderator iYeow's Avatar
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    Easy, download the 3g 3.1.2 ipsw from here :
    iClarified - iPhone - Where To Download iPhone Firmware Files From
    and Do the Shift + Restore to 3.1.2 ipsw.
    Run Redsn0w 0.9.4 to jailbreak.
    You are jailbroken at 3.1.2 with a fresh OS
    Unlock with Ultrasn0w again.

  3. The Following User Says Thank You to iYeow For This Useful Post:

    flyblackboxflyblackbox (2010-10-16)

  4. #3
    or you can go with the OS 4.0, which can still be unlocked by ultrasn0w

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    flyblackboxflyblackbox (2010-10-16)

  6. #4
    I think I may have unlocked with Blacksn0w, would that cause a problem?

    Quote Originally Posted by haissk View Post
    or you can go with the OS 4.0, which can still be unlocked by ultrasn0w

    I heard that 4.0 is really slow on a 3G, but that 4.1 fixed that issue.
    With baseband 5.11.07, can I upgrade to 4.1 without losing my unlock?
    Last edited by flyblackboxflyblackbox; 2010-10-13 at 05:26 AM. Reason: Automerged Doublepost

  7. #5
    Retired Moderator iYeow's Avatar
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    Yes, you can. Since it has been jailbroken by blackra1n.
    To get to 4.1 , this is what you have to do :
    Download 3g 4.1 ipsw from here :
    iClarified - iPhone - Where To Download iPhone Firmware Files From
    Download Snowbreeze 2.0.2 from here :
    iH8sn0w.com | Jailbreak your iPod touches and iPhones
    Build your custom fw, use Expert mode : Under General uncheck activate iphone. You will need an official sim to activate after the restore.
    Now build your own snowbreeze_4.1.ipsw and it will be placed on your desktop.
    Put your iphone into recovery mode and do the Shift + Restore to snowbreeze_4.1.ipsw.
    Once restored, pop your sim card in to trigger into Home Screen.
    Now Open up Cydia and update it and install Ultrasn0w to unlock.
    That is all..

  8. The Following 2 Users Say Thank You to iYeow For This Useful Post:

    flyblackboxflyblackbox (2010-10-16), naranja (2010-10-24)

  9. #6
    Quote Originally Posted by yeow202 View Post
    Yes, you can. Since it has been jailbroken by blackra1n.
    To get to 4.1 , this is what you have to do :
    Download 3g 4.1 ipsw from here :
    iClarified - iPhone - Where To Download iPhone Firmware Files From
    Download Snowbreeze 2.0.2 from here :
    iH8sn0w.com | Jailbreak your iPod touches and iPhones
    Build your custom fw, use Expert mode : Under General uncheck activate iphone. You will need an official sim to activate after the restore.
    Now build your own snowbreeze_4.1.ipsw and it will be placed on your desktop.
    Put your iphone into recovery mode and do the Shift + Restore to snowbreeze_4.1.ipsw.
    Once restored, pop your sim card in to trigger into Home Screen.
    Now Open up Cydia and update it and install Ultrasn0w to unlock.
    That is all..
    Thank you so much.. I was so frustrated and it caused me to put off updating for a month.

    I have an old sim AT&T card from a friend's previous iPhone. He upgraded and got an iPhone 4G with a new sim card, can I use his to activate my phone?

  10. #7
    Livin the iPhone Life CaptainChaos's Avatar
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    If you have a U.S. IPhone you can use the old AT$T sim.

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    flyblackboxflyblackbox (2010-10-16)

  12. #8
    iPhone? More like MyPhone
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    or cingular
    DROID does... iPhone does it harder, better, faster, stronger

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    flyblackboxflyblackbox (2010-10-16)

  14. #9
    Thanks guys, this all worked out. I appreciate the help.
    I cannot get the EDGE internet to work however..

  15. #10
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    You entered the right APN?

  16. #11
    I too have a 3G iphone, firmware 3.1.2, baseband 5.11.07, that was unlocked and jailbroken via blackrain long ago. I followed this sn0wbreeze jailbreak tutorial to install custom 4.1 firmware. Then used ultrasn0w from Cydia to unlock. Then browsed to unlockit.co.nz in my phone to set my APN/data info. Now I am on 4.1 and everything is working great on ATT prepaid. The unlock wasn't necessary, but I tested with a T-mo sim and I am unlocked if I ever want to switch.

    If you are on T-mobile you can install the APN/data settings in Cydia, search for t-mobile. Also be sure you have an att sim in the phone for activation since the hactivation option in sn0wbreeze is supposed to be problematic right now. And they say don't enable multi-tasking in sn0wbreeze (too slow on a 3G).
    Last edited by naranja; 2010-10-24 at 03:02 PM.

  17. #12
    Quote Originally Posted by Anniex423 View Post
    You entered the right APN?
    I've tried a lot of different APN settings (below) without success

    [ame=http://forums.macrumors.com/showthread.php?t=1033353]edge not working for tmobile iphone 4 4.1 - Mac Forums[/ame]<
    How To Set Up T-Mobile EDGE On an iPhone<
    http://modmyi.com/forums/t-mobile/72...-settings.html

    Quote Originally Posted by naranja View Post
    I too have a 3G iphone, firmware 3.1.2, baseband 5.11.07, that was unlocked and jailbroken via blackrain long ago. I followed this sn0wbreeze jailbreak tutorial to install custom 4.1 firmware. Then used ultrasn0w from Cydia to unlock. Then browsed to unlockit.co.nz in my phone to set my APN/data info. Now I am on 4.1 and everything is working great on ATT prepaid. The unlock wasn't necessary, but I tested with a T-mo sim and I am unlocked if I ever want to switch.

    If you are on T-mobile you can install the APN/data settings in Cydia, search for t-mobile. Also be sure you have an att sim in the phone for activation since the hactivation option in sn0wbreeze is supposed to be problematic right now. And they say don't enable multi-tasking in sn0wbreeze (too slow on a 3G).
    This gave me hope because we have the exact same configuration.. but I just tried to install the T-mobile Carrier Bundle
    and got an error 'subprocess pre-installation script returned error exit status 1'

    **Also tried the APN settings download in Cydia and got:
    'subprocess pre-installation script returned error exit status 255'
    Last edited by flyblackboxflyblackbox; 2010-10-24 at 10:14 PM.

  18. #13
    T Mobile EDGE Stopped Working Houston Web Design

    This fixed my problem. After following the above tutorial, use APN: internet2.voicestream.com
    Last edited by flyblackboxflyblackbox; 2010-11-04 at 07:41 PM.

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