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Thread: 3G 4.0.2 05.13.04 Upgrading to 4.1 Using Sn0wbreeze Won't Work

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    Green Apple
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    Default 3G 4.0.2 05.13.04 Upgrading to 4.1 Using Sn0wbreeze Won't Work
    I used iREB in an attempt to upgrade to 4.1. All seemed to have worked well (got error 1604, re-did it, went ok). Afterwards my iPhone status in iTunes still says 4.0.2 - this caused an error in Sn0wbreeze when I tried to select the iPhone 1,2_4.1_8B117_Restore bit. Does anyone know what I'm doing wrong?

  2. #2
    Are you on the latest version of iTunes?

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    Green Apple
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    Yes. I'm on iTunes 10.

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    Retired Moderator iYeow's Avatar
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    Why don't you put it in dfu mode, shift + restore to 3.1.2, kick out the error 1015, jailbreak with Redsn0w 0.9.4, run ireb 4.1, then shift + restore to snowbreeze_4.1.ipsw. This is guaranteed to work.

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    Green Apple
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    I did not think I could downgrade to 3.1.2! Besides, wouldn't redsn0w keep me from being able to unlock? Am I missing something here? Please advise.

  6. #6
    No redsn0w doesnt update your baseband. Aslong asnyou use custom firmware when upgrading to 4.1 you will be safe to unlock...

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    Retired Moderator iYeow's Avatar
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    Quote Originally Posted by nl393a View Post
    I did not think I could downgrade to 3.1.2! Besides, wouldn't redsn0w keep me from being able to unlock? Am I missing something here? Please advise.
    You need to do more research on all jailbreaking and unlocking tools to understand.
    If you don't have the time to do all that, then just follow my advice , you will be jailbroken at 4.1 and still being able to unlock.

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    Green Apple
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    I will give it a try today. I will let you know how it went. Thank you ukhellfire and yeow202:-)

    Quote Originally Posted by yeow202 View Post
    You need to do more research on all jailbreaking and unlocking tools to understand.
    If you don't have the time to do all that, then just follow my advice , you will be jailbroken at 4.1 and still being able to unlock.
    I am in the process of doing according to your instructions in your initial email. ITunes is restoring iPhone software now (3.1.2). Can you give me the rest of the instructions in more details? Do I "jailbreak" with redsn0w 0.9.4? How? Thank you.
    Last edited by nl393a; 2010-10-26 at 09:11 PM. Reason: Automerged Doublepost

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    Retired Moderator iYeow's Avatar
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    Once you have restored to 3.1.2, you can jailbreak it with Redsn0w 0.9.4
    Once you are jailbroken
    Create a custom firmware from Snowbreeze 2.0.2, uncheck activate my iphone using Expert mode under General. Now build it and it will be placed on your desktop.
    Plug your jailbroken at 3.1.2 iphone in.
    Run Ireb 4.1 and it will put you in DFU mode.
    Now do the shift + restore to Snowbreeze_4.1.ipsw
    Once restored, you are at Emergency screen.
    Put your official sim in.
    Now you are at Springboard/Home screen and jailbroken at 4.1
    Open up Cydia and install Ultrasn0w to unlock.
    You are all set.

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    Green Apple
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    Hi yeow202,
    I tried yesterday, it ddi not work. Below are what happened:

    1. Put my phone in DFU mode, shift/restore
    2. Restore seemed to work fine - except my iPhone summary still says I'm on 4.0.2 - not sure if that' normal
    3. When I pwn'ed it with 0.9.4 (I think thT's what you meant when you said "jailbreak with 0.9.4), I got an "invalid firmware" error.
    What gives?!?!

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    Retired Moderator iYeow's Avatar
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    Of course you are not going to get it working the way you are doing it.
    You are still at 4.0.2 because you haven't do the Shift + Restore to 3.1.2ipsw.
    You seems to like to skip some steps.
    You are not following instructions , so I can't help you much.

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    Green Apple
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    Hi Yeow202,

    Thank you for your patience. I finally got it to work. However, Cydia does not come up after Sn0wbreeze 2.0.2 says "success". Is there a trick to retrieve Cydia? Thank you. (btw, after upgrading to 4.0.2, my fw shows 05.14.02. I thought using Sn0wbreeze should preserve your baseband)

  13. #13
    You obviously didn't hold shift and restore to the custom firmware that sn0wbreeze created on your desktop.

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    Green Apple
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    I'm pretty sure I did (press shift) because I select iPhone 1,2_4.1_8B117_Restore_ipsw from the pwnage folder.

  15. #15
    Yes but that's the incorrect ipsw. You are supposed to select sn0wbreeze 3G.ipsw from your desktop (or wherever you chose to save it to)

    You basically restored to the stock 4.1.

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    Green Apple
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    So that's why! I guess my only other option is Redsn0w 9.6 now (I do not need to unlock as I'm with at&t)!

    So that's why! I guess my only other option is Redsn0w 9.6b now :-(

    (I do not need to unlock as I'm with AT&T)

    Thank you for pointing it out.
    Last edited by nl393a; 2010-11-01 at 04:03 AM. Reason: Automerged Doublepost

  17. #17
    limera1n and greenpois0n will both do the trick.

  18. #18
    Green Apple
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    I thought Limera1n and Greenpois0n don't work on 3G.

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