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Thread: Jailbroken Iphone 3GS 3.1.2 upgrade to 4.0.2 , and then down grade to 4.0.1

  1. #1
    Default Jailbroken Iphone 3GS 3.1.2 upgrade to 4.0.2 , and then down grade to 4.0.1
    Hi Guys, I need some help here,

    I Have 3GS jailbroken/unlocked on 3.1.2 using blackra1n.
    unlocked baseband 05.11.07

    Now I wanted to upgrade to 4.0.2 (Latest firmware) using itunes

    And then downgrade to 4.0.1 , and use the jailbreakme.com to jailbreak again and then unlock.



    Is this possible, and I see this in My Cydia:

    this device has shshs on file for iphone OS / IOS 3.1.3, 4.0, 4.0.1

    So , with my little research , I think I can , but is there anything am missing here?

    Thanks!..Please help me

  2. #2
    My iPhone is a Part of Me
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    What's the point of going to 4.0.2, then downgrading to 4.0.1? Why not just go straight to 4.0.1?
    If I somehow helped you, press thanks

  3. The Following User Says Thank You to neodude237 For This Useful Post:

    aussiep (2010-08-25)

  4. #3
    Can you please tell me how to go to 4.0.1..but I am not on offitial career, what would it require for me to activate My phone.

    I was on official career, but now using another career, do I still need activation?

  5. #4
    Assuming you want to maintain your unlock/ultrasn0w, your only 4.0.x jailbreak solution is to go to 4.0 using a custom .ipsw built by pwnage tool or sn0wbreeze.

    Pwnage tool guide (OS X): How to Jailbreak iPhone 3GS to 4.0 with PwnageTool | OS X
    Sn0wbreeze guide (Windows): How to Jailbreak iPhone 3GS to 4.0 with Sn0wbreeze | Windows

    Note: I could not get any .ipsw created by sn0wbreeze to restore, I had to create an image using pwnage tool on a mac, and restore using that ipsw on my PC.

    Hope this helps.

    Note that jailbreakme.com will jailbreak your phone but *will not* allow it to be unlocked.

  6. #5
    My iPhone is a Part of Me
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    Quote Originally Posted by aussiep View Post
    Can you please tell me how to go to 4.0.1..but I am not on offitial career, what would it require for me to activate My phone.

    I was on official career, but now using another career, do I still need activation?
    The sn0wbreeze method may work, but I've heard quite a few different stories about how well and.... how not so well the software works. So I can't really say anything about that. For jailbreakme.com to work, yes, you must be activated. It'd be easiest to get ahold of a friend's sim from an official carrier and just use that to bypass activation or pick up a prepaid one or something. Then run ultrasn0w in Cydia to unlock.
    If I somehow helped you, press thanks

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