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Discuss Upgrading to iOS4 on a 3G at the iOS 4.x (iPhone OS 4.x) - Hackint0sh.org; I am very new to the whole jailbroken and unlocked iPhone scene, so I would ...
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    Default Upgrading to iOS4 on a 3G

    I am very new to the whole jailbroken and unlocked iPhone scene, so I would like to get the most current information before I attempt this.
    The facts: This is a 3G already unlocked and running on Tmobile. I bought the phone in this condition, but blackra1n is installed, so I guess it was done with that. It is currently running 3.1.2(7D11), with modem firmware 5.11.07.
    I want to upgrade to some version of iOS4, but am a bit worried about losing the unlock, as that would be a disaster.
    Any tips on how I should go about this, and/or any pitfalls I may encounter?

    Thanks in advance.



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    Super Moderator Array Olethros's Avatar

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    Quote Originally Posted by alfadoc View Post
    I am very new to the whole jailbroken and unlocked iPhone scene, so I would like to get the most current information before I attempt this.
    The facts: This is a 3G already unlocked and running on Tmobile. I bought the phone in this condition, but blackra1n is installed, so I guess it was done with that. It is currently running 3.1.2(7D11), with modem firmware 5.11.07.
    I want to upgrade to some version of iOS4, but am a bit worried about losing the unlock, as that would be a disaster.
    Any tips on how I should go about this, and/or any pitfalls I may encounter?.
    Two vital things you need to confirm:

    Do you have access to a Mac? Preventing baseband update can only be done safely with Pwnagetool
    If you don't want to go to 4.2.1, then you need to check if there are any SHSH saved for the device (TinyUmbrella will do this).
    Please read the stickies & search forum before posting!
    How to report an iTunes restore/update fail in a useful manner
    -

    iPad 3G 64GB (4.3.3, Redsn0w) oldest SHSH 3.2.2
    iPhone 4 32GB (4.2.1, Redsn0w JB-monte) oldest SHSH 4.1
    iPhone 3GS 32GB (4.3.3; Pwnagetool) factory unlocked oldest SHSH 3.1
    iPhone 8GB (3.1.3; Pwnagetool) AT&T Locked - Unlocked with bootneuter

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    Did we solve your problem? Got a dollar or two spare ? Donate!

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    Yes I have a Mac, and I downloaded Pwnagetool 4.1.3. Am I right to assume this will update the phone to iOS 4.1.3?
    As for the SHSH, I opened Cydia, and at the top in green it says "SHSH: iOS 4.0, 4.0.1, 4.0.2,4.1, 4.2.1". Is this what you meant?

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    Super Moderator Array Olethros's Avatar

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    Quote Originally Posted by alfadoc View Post
    Yes I have a Mac, and I downloaded Pwnagetool 4.1.3. Am I right to assume this will update the phone to iOS 4.1.3?
    No, Pwnagetool 4.1.3 is designed to support iOS 4.2.1 and iOS 4.1


    Quote Originally Posted by alfadoc View Post
    As for the SHSH, I opened Cydia, and at the top in green it says "SHSH: iOS 4.0, 4.0.1, 4.0.2,4.1, 4.2.1". Is this what you meant?
    This is good news - you have options.
    I recommend you do this:
    iClarified - iPhone - How to Jailbreak and Unlock Your iPhone 3G Using PwnageTool (Mac) [4.2.1]
    Please read the stickies & search forum before posting!
    How to report an iTunes restore/update fail in a useful manner
    -

    iPad 3G 64GB (4.3.3, Redsn0w) oldest SHSH 3.2.2
    iPhone 4 32GB (4.2.1, Redsn0w JB-monte) oldest SHSH 4.1
    iPhone 3GS 32GB (4.3.3; Pwnagetool) factory unlocked oldest SHSH 3.1
    iPhone 8GB (3.1.3; Pwnagetool) AT&T Locked - Unlocked with bootneuter

    -
    Did we solve your problem? Got a dollar or two spare ? Donate!

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    It worked! Perfectly! Thanks a bunch Olethros! This is a great resource; I'll be comming back, I'm sure. Thanks again.


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    Hi, How is your iphone working on 4.2.1, I haven't upgrade mine yet cause I read somewhere else that it gets really slow, is that true or is it fixed in this firmware.
    Thanks

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    It seems to be working well. I didn't have a lot of experience with the previous operating system, but the speed seems comparable.
    To anyone who might be reading this; when I upgraded, it seemed to wipe out all settings, and I was wondering if it reset the phone's password to some default. I either don't remember the old password correctly, or it has been changed. Luckily it is not needed right now, but I want to set it to something easily remembered.

 

 

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