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Discuss How can I upgrade iphone 3G 3.1.2 Firmware 05.11.07 at the Blackra1n (3G(S) jailbreak) - Hackint0sh.org; Originally Posted by JJ01 Yes, I did download the custom ipsw using sn0wbreeze but I ...
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    Quote Originally Posted by JJ01 View Post
    Yes, I did download the custom ipsw using sn0wbreeze but I was not aware of the option to prevent baseband update. I did not babysit all the firmware update (was in and out) so maybe I missed it. Appreciate the tip re TinyUmbrella, will try. We are with Rogers (Canada). Again, thanks.
    Roger may authorise an official unlock. Ring them
    Please read the stickies & search forum before posting!
    How to report an iTunes restore/update fail in a useful manner
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    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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    Hello iphone experts!

    I have an iPhone 3GS, software 3.1.2, firmware 05.11.07, (old bootrom I think iBoot-359.3), currently unlocked. Could I upgrade to 4.2.1 using the same method discussed in this post? I rely on an unlock.

    (Perhaps I can update it to 4.3.5 instead of 4.2.1?)

    Thanks for your help!

    Simone
    Last edited by teddysimone; 09-08-2011 at 04:12 AM.

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    Quote Originally Posted by teddysimone View Post
    Hello iphone experts!

    I have an iPhone 3GS, software 3.1.2, firmware 05.11.07, (old bootrom I think iBoot-359.3), currently unlocked. Could I upgrade to 4.2.1 using the same method discussed in this post? I rely on an unlock.

    (Perhaps I can update it to 4.3.5 instead of 4.2.1?)
    You've picked the wrong thread to reply in.

    This thread talks about the iPhone 3G, which has a different security model to the 3GS regarding OS upgrades/downgrades/reinstalls. The advice in this thread is not entirely relevant to your situation. The key difference is 3GS enforces an extra check via the SHSH mechanism to limit upgrades/downgrades/reinstalls. In the old bootrom 3GS this check can be bypassed, but for various reasons there aren't straightforward solutions for doing this on iOS 4.1 or higher.

    I would suggest you verify which saved SHSH blobs you have and try and reply in a more suitable thread (one that specifically discusses using custom IPSW to preserve baseband in conjunction with a saved SHSH blob on a 3GS)
    Please read the stickies & search forum before posting!
    How to report an iTunes restore/update fail in a useful manner
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    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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    Default Iphone 3G 16GB 3.1.3(7E18), Modem Firmware: 05.12.01 needs upgrade

    Friends,
    I have a Iphone 3G 16GB 3.1.3(7E18), Modem Firmware: 05.12.01 Jail broken & Unlocked.
    This was the last configuration i had and was fine for me. All the notes on internet around the OS4 and its problems with Iphone 3G ket me off from doing any upgrade. Now when I am looking for information, there are lots and I am throughly confused. I am not a bigtime software expert (though I can manage the upgrade myself). The guidance I am looking for is as follows:
    1) is it worth upgrading from 3.1.3(7E18), Modem Firmware: 05.12.01 Jail broken & Unlocked? (problems for me is, most apps now indicate need for OS4 or above. What is an iphone without apps to use)
    2) if its worth what should be level upto which I need to upgrade (4.1/4.2 etc.. confused)?
    3) I need to have the phone unlocked else its of no use to me. I don't have the original SIM card for registering.

    My system is windows XP Professinal V2002, service pack 3.
    I-tunes: 10.1.0.54
    Request team to guide me and/or direct me to the DIY site.

    Thanks in advance

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    You must use Pwnagetool / sn0wbreeze custom IPSW to prevent baseband update (that way you can still unlock)
    4.2.1 is the most stable/fastest but al iOS 4.x are slower than 3.1.3 on an iPhone 3G

    This is a topic that has been explained in detail before. iClarified has guides that explain how to use Pwnagetool to achieve this. Search around on hackint0sh for detailed threads, ask if that thread is appropriate before you try it.

    Do NOT ever load an original IPSW as you will lose your baseband and thus ability to unlock.
    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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