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Thread: Jaibreak/Unlock IPhone 3G(4.0.2) ?

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I bought pre-owned IPhone-3G. It came with firmware 4.0.2 installed. As this time is it possible to JB & Unlock this phone?
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  1. #1
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    Default Jaibreak/Unlock IPhone 3G(4.0.2) ?
    I bought pre-owned IPhone-3G. It came with firmware 4.0.2 installed. As this time is it possible to JB & Unlock this phone?

  2. #2
    Super Moderator iYeow's Avatar
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    Yes, download Redsn0w 0.9.5b5-5 to do the jailbreak, just browse to 4.0 ipsw when running redsn0w.

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    fruitpie (09-11-2010)

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    Quote Originally Posted by yeow202 View Post
    Yes, download Redsn0w 0.9.5b5-5 to do the jailbreak, just browse to 4.0 ipsw when running redsn0w.
    Thanks

    Just to re-confirm I don't have SHSH blobs backed up for this phone as I bought it pre-owned and it came with Version: 4.0.2(8A400) and Modem Firmware: 05.13.04 . So its JB/Unlockable?

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    Yes, your Baseband is unlockable by Ultrasn0w.

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    fruitpie (09-11-2010)

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    Thanks yeow202

    For any reason do I need to backup my current SHSH blobs ? Which one should I use iPhone1,2_4.0.2_8A400_Restore.ipsw or iPhone1,2_4.0_8A293_Restore.ipsw ?

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    Super Moderator iYeow's Avatar
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    You already have 4.0.2 on your iphone, when you run Redsn0w, it will ask you to browse to , choose iphone1,2_4.0_xxxx.ipsw

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    fruitpie (09-11-2010)

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    Thanks..I am going to follow that .

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    And remember when you open up Cydia after the jailbreak, click make my life easier if this message pops up, then Cydia will save all future shsh blogs for you.

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    I got the JB and Unlock done. However every time it reboots I get the message "Waiting for activation this may take some time. then I'm given an option to to Dimiss.

    Please does anyone know how to get rid of this message or solution to it ?

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    What carrier are you using ? After you unlock, put your sim card in and go to Setting > General > About and let it update carrier setting. It should activate your iphone, if you don't let it activate, the message won't go away.

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    fruitpie (09-14-2010)

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    Thanks yeow202 for your help. I tried 2 diff. carrier's SIM and in 2-3 minutes got the Phone Activated message.

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    So is everything alright now on your Iphone, Fruitpie
    Last edited by iYeow; 09-14-2010 at 04:50 PM.

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    I've tried Redsnow and it kept hanging after going through the install. I used Blackrain instead, but now have a phone that I'm unable to unlock. Is this due to the baseband or bootloader? Fuzzyband and Ultrasnow haven't fixed it.

    Bootloader Version is 05.09 [G2M3S2]
    Baseband is ICE2-05.14.02

    Should I retry using Redsnow or is there another method I can use to unlock? What about Blacksnow, would that work?

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    Your baseband cannot be unlocked yet, ultras0w won't work at this baseband

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    Quote Originally Posted by yeow202 View Post
    Your baseband cannot be unlocked yet, ultras0w won't work at this baseband
    Is there a way to downgrade the baseband? On some old 3G it is, right?

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    Only if you have bootloader 5.8, but very few 3G iphone has it. Ever since then, Up till today, no baseband can be downgraded.

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