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Thread: iPhone 3G - Which Jailbreak to Unlock is Possible?

  1. #1
    Post iPhone 3G - Which Jailbreak to Unlock is Possible?
    Sorry if this has been posted before.

    I have a iPhone 3G with 3.1.2, unlocked.

    My phone has been acting up for about half a year now. It gets slower and slower. Apps stop working, they close immediately after having tried to open them. Cydia crashes every time.

    I'm thinking of upgrading to 3.1.3 or 4.1. I don't know how slow the 3G gets once it upgrades to anything above 4.0. If the speed differs only by a little, I guess 4.1 would be better.

    Also, I think before I tried to upgrade the firmware using iTunes and it wouldn't let me. iTunes would try to access the server and reject the request of upgrading the firmware. Does this mean we're not able to upgrade to which ever firmware we want? We have to upgrade to the newest firmware?

    Which Unlock method can I use to go to 3.1.3 or 4.1? I'm living outside of the country now, so I rely on the unlocking to work.

    Thanks.
    Last edited by misterdobi; 2010-11-16 at 04:29 AM.

  2. #2
    Livin the iPhone Life
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    Many jb'ing methods exist -- but you must choose one that creates a 'custom firmware' to prevent baseband/modem firmware upgrade and allow ultrasn0w to unlock.

    PwnageTool (Mac) or Sn0wbreeze (PC) work great for 4.1.
    Last edited by Mes; 2010-11-16 at 03:52 AM.

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    misterdobi (2010-11-16)

  4. #3
    Thanks.

    Is ultrasn0w the only way to unlock? I'm guessing that's the most common way.

  5. #4
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    ^the only way

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    misterdobi (2010-11-16)

  7. #5
    Superbad Modder-ator Simon's Avatar
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    The only way outside of getting apple to do it, which isn't going to happen on a ATT iPhone.

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    misterdobi (2010-11-16)

  9. #6
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    ^Yea . Hope this happens before I'm too old to care

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    misterdobi (2010-11-16)

  11. #7
    Superbad Modder-ator Simon's Avatar
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    Ya maybe when that ATT deal expires

    Unless they extend it of course

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    misterdobi (2010-11-16)

  13. #8
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    We can hope ....

    Personally I believe it will take a major class-action lawsuit to force AT&T and/or Apple to budge even an inch.

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    misterdobi (2010-11-16)

  15. #9
    Okay, so I just got an iPhone 3G, it's running 4.1 right now, what would be the best thing to use to Jailbreak and unlock it, seeing as I'm using T-mobile right now and not AT&T?

  16. #10
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    If your baseband is 5.13.x or less, you can unlock with Ultrasn0w, if higher you must wait.

    Regardless, if you ever want an unlock it's always best to use a custom firmware which retains the unlock capabilities.

    Jailbreaking 4.1 and below are easy for 3G users ... But jailbreaking PLUS keeping unlock/current baseband is best performed with PwnageTool or Sn0wBreeze (they create custom firmwares). Redsn0w can also work fine depending upon what you want to do.
    Last edited by Mes; 2010-11-20 at 02:58 AM.

  17. #11
    Baseband is 5.14.02 unfortunately. Ideally I want to do both but I know right now for my baseband it's not available to unlock. Hopefully soon eh?
    I'm working on windows so I'm pretty sure I'm going to have to use Sn0wBreeze, correct?

  18. #12
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    Because your baseband is too high now (for ab unlock) you can use Redsnow to jailbreak 4.1. Standard 4.1 installs 5.14.x baseband, so your baseband doesn't change.

    In the future, you must use a custom firmware to keep the baseband from updating.

    Note: many 3G users believe 4.x is too slow and stay at 3.1.3
    Last edited by Mes; 2010-11-20 at 03:09 AM. Reason: Automerged Doublepost

  19. #13
    Alright, is there any way I can downgrade it to 3.1.3 or will that not work with the BB that's on the iphone?

  20. #14
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    Yes 3G users can downgrade the firmware to almost anything No unlock, the baseband never goes down.

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    NightTerrors (2010-11-20)

  22. #15
    Alright, thanks a lot, that was a huge help.

  23. #16
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    This is why custom firmware is sooo important for unlockers. My baseband is 4.26.x which means I can jb AND unlock ANY version 3.0 thru 4.1.

  24. #17
    Yeah, and this sucks, trying to get my iphone to work on T-mobile

  25. #18
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    Yea I hear ya. So many people get 'caught up' in the hype of a new firmware or a new jb tool they forget about unlocking and are stuck for months and months.

  26. #19
    Yeah, I mean I just got mine today actually and I'm trying to jailbreak it properly without ******* it over and so far I've not found anything that has worked, already had to restore it once today.

  27. #20
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    It's very good experience though . I've done that many many times (mostly by necessity haha). Pretty soon you will be an expert and know those little but very important details

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