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Thread: is it possible for 3gs upgrade from 3.1.2 to 4.0 then jb and unlock ?

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You can either use a custom ios4 firmware to restore with Or you can just installed ultrasn0w from within cydia
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  1. #21
    Livin the iPhone Life
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    You can either use a custom ios4 firmware to restore with

    Or you can just installed ultrasn0w from within cydia
    The only thing I ask in return for helping, is that you click the thanks button, Thanks!

  2. #22
    My iPhone is a Part of Me vietkool's Avatar
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    which tool I need to use to restore iOS4 and how I jailbreak and unlock ? I did install the ultrasn0w and the phone is unlock now. My goal is if I can use iOS4 and unlock.

  3. #23
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    Theres a little feature called search..

    And theres another little tool called google...

    But since you seem like you need this hand fed to you

    for windows How to Jailbreak iPhone 3GS to 4.0 with Sn0wbreeze | Windows

    for mac How to Jailbreak iPhone 3GS to 4.0 with PwnageTool | OS X

    Don't forget to hit all those thanks buttons, even in the other thread you made yesterday
    The only thing I ask in return for helping, is that you click the thanks button, Thanks!

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    vietkool (06-27-2010)

  5. #24
    My iPhone is a Part of Me vietkool's Avatar
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    those links you gave I already have them.
    I upgrading to 3.1.2 now but I got issue wiht Redsn0w 0.9.4, when put the device to DFU mode, execute the redsnow exe then browse to the 3.1.2 ipws and confirm No ( for not a new model 3GS) and then click next. The instructio said that will reboot the device but i look at my iphone it shows kindda red/white blurry screen, the redsn0w screen show uploading exploit and I wait like 20minutes still nothing moving at all
    please help
    Last edited by vietkool; 06-27-2010 at 05:01 PM.

  6. #25
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    How in the world did you update to 3.1.2 on your 3gs?

    And you need to be jailbroken, not on 3.1.2 to update to 4.0, aka you should have restored to a custom ios4 after you had 3.0 jailbroken.. (sorry not in those links I posted, but i thought you would have already read the official dev team blog...

    Plus both of those guides I posted said to use blackra1n to jailbreak, 3.1.2, why would you use redsn0w?
    Last edited by babyblue_pimp; 06-27-2010 at 05:11 PM. Reason: Automerged Doublepost

  7. #26
    My iPhone is a Part of Me vietkool's Avatar
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    I am kindda nervous to go for 4.0, that why I try to upgrade to 3.1.2. I found a link form iclairified it guides how to jailbreak 3.1.2 but I try like 10 times now still did not go nowhere
    here is the intruction that I follow but got stuck now
    http://www.iclarified.com/entry/index.php?enid=7449
    Last edited by vietkool; 06-27-2010 at 06:13 PM.

  8. #27
    Livin the iPhone Life Simtech's Avatar
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    !!!! .... You don't have your SHSH files stored you cannot upgrade / install any standard firmware except 4.0. Your only solution is to jailbreak what you have and install a Custom firmware. Whether that be a 3.1.2 or 4.0 it has to be a custom firmware. You can't use that guide that you referenced.

  9. #28
    My iPhone is a Part of Me vietkool's Avatar
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    buddy, at my last posts, I did mention that I jailbroken and unlocked the phone ver. 3.0 already. I tried the Tmoble SIM a make a call it work great. Now I try to upgrade to 3.1.2 (atleast I know it stable OS now). That'w why I use the instruction I found above. but it'didn;t work.

  10. #29
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    You can not upgrade to 3.1.2............

  11. #30
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    Viet, you need to do some research of your own, it seems you don't have a grasp of what your doing, and we can't just baby step you through the entire process.
    A hint for anything you do electronically, never try something ten times over and over, if something doesn't work, there's a 99.9% chance your doing something wrong. And doing something wrong 10 times usually = broken device. I'm sure your phone is alright, but stop touching your phone, and take 30-60 minutes of just reading through the dev team blog, and the 3GS subsection here on modmyi, maybe you'll understand what your trying to do. The tools and resources are available for you. (no one teaches you how to hack, you either take the time to learn, or you pay someone to do it for you)

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  13. #31
    My iPhone is a Part of Me vietkool's Avatar
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    I think I will stop at 3.0 then since it jb and unclocked work fine.
    I can make call, browse some internet and comment on facebook

    thanks all you guys for helping me since this first time I try to do by myself.

  14. #32
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    No problem.
    i'm guessing there is a little language barrier, because some of things you say are truly confusing to me lol

    But i'm glad your phone is up and running! enjoy the new found speed!

    Come back in a month, there will be a new jailbreak for 4.0, which will be very easy, and will be perfect for you to use in the future.
    The only thing I ask in return for helping, is that you click the thanks button, Thanks!

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