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Thread: Iphone 3gs : how to create custom IPSW

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Bought this Iphone 3gs, unlocked and jailbroken on 5.0.1 with 6.15 baseband, wondering it would be good idea to create cfw to save my *** ...how do I do that?
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  1. #1
    Green Apple
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    Default Iphone 3gs : how to create custom IPSW
    Bought this Iphone 3gs, unlocked and jailbroken on 5.0.1 with 6.15 baseband,

    wondering it would be good idea to create cfw to save my *** ...how do I do that?

  2. #2
    Super Penguin Mod i.Annie's Avatar
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    What are you trying to create a custom fw for? Or are you trying to create a signed firmware for future use with 5.0.1 SHSHs?

  3. #3
    Green Apple
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    Quote Originally Posted by i.Annie View Post
    What are you trying to create a custom fw for? Or are you trying to create a signed firmware for future use with 5.0.1 SHSHs?
    Yes, just incase if I have to restore my Iphone,

  4. #4
    Super Penguin Mod i.Annie's Avatar
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    Which one? A custom firmware or a signed firmware?

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    Green Apple
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    basically i want to create one that I can use it in the future ,

    --if i have to downgrade back to 5.0.1(if we upgrade in the future)

    actually what do u think what is the best way to preserve ur baseband/ssh for future. and to restore 3gs 5.0.1 with bb 6.15

  6. #6
    Super Penguin Mod i.Annie's Avatar
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    So you're wanting a signed firmware then. I highly doubt your baseband is going to change any time soon. Custom firmwares don't allow downgrading in the future once Apple stops signing. You're going to want to save your SHSHs for 5.0.1 with TinyUmbrella if you haven't done so already. That's the important thing. You can go creating a custom firmware anytime you want to in the future. Using it can only work if you've got 5.0.1 SHSHs. Go and download from

    Thefirmwareumbrella.blogspot.com

    "TinyUmbrella" for you operating system. Run it, click "Save SHSHs" with your device plugged in. Then it should show up that you have 5.0.1 SHSHs saved.

    If you still want to create a custom firmware for 5.0.1 now, you can do so with Redsn0w. Just download the latest version (dev team's blog) and click "Extras" and then click "Custom ipsw." You'll also want to download a stock 5.0.1 ipsw (check the Downloads section here on MMi) bc you'll need that to create the custom fw.

  7. #7
    Green Apple
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    downloaded tiny U saved shshs, created cfw 5.01 using redsn0w and now trying to restore it, it is giving me 1600 error msg.

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    Green Apple
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    you have latest version of itunes? and you're shift (or option on mac) clicking restore and selecting your custom fw when restoring?

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