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Thread: How to upgrade iPhone 3G to 4.2.1 + unlock WITHOUT ipad baseband?

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Hi all! I've been trying to figure this out for a few days and can't find a straight answer! I have: iPhone 3G; FW 4.1; BB 05.13.04 (jailbroken and unlocked)
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  1. #1
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    Default How to upgrade iPhone 3G to 4.2.1 + unlock WITHOUT ipad baseband?
    Hi all!

    I've been trying to figure this out for a few days and can't find a straight answer!
    I have:
    iPhone 3G; FW 4.1; BB 05.13.04 (jailbroken and unlocked)

    And I would like to upgrade to 4.2.1 (because apparently the 3G is more responsive on 4.2.1) and I need the phone to be hacktivated, jailbroken and unlocked (carrier)

    I know this is achievable with redsn0w and iPad BB but I heard there are problems with battery life as well as other things.

    Is there a way to:
    either upgrade to 4.2.1 while keeping the 05.13.04 BB and jailbreak and hacktivation (like what would sn0wbreeze do if it was available for 4.2.1)

    or upgrade to 4.2.1 and change BB to NOT-iPad-BB and get jailbreak and hacktivation and carrier unlock?

    Thanks for your help
    Last edited by Bigzebra; 01-01-2011 at 11:31 AM. Reason: more details

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    Super Moderator iYeow's Avatar
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    Make sure you update your itunes first.
    You can use Pwnage tools 4.1.3 to create a custom firmware of 4.2.1 with no BB update to preserve your 05.13.xx BB to be unlocked by Ultrasn0w.
    Use Redsn0w 0.9.6b6 and browse to stock 4.2.1, check only the box , dfu mode only.
    Once you have achieved dfu mode, run itunes, shift + restore to custom firmware of 4.2.1.
    I have included a copy in your PM box.

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    Wow thanks for the quick solution!
    Just to be sure, what options are activated in the ipsw you sent me?
    I'm guessing no multitasking
    hacktivation? (which I need)
    battery percentage? (which would be great)
    background wallpaper on springboard? (I hope not cause I tried once and the phone was soooo slow...)
    custom boot logos?

    thanks again

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    Super Moderator iYeow's Avatar
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    No ipad bb update, wallpaper, Multitask and battery percentage enabled.

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    Default Upgrade iPhone 3G to 4.2.1 + unlock WITHOUT ipad baseband or BB update
    I have a similar setup except I have 05.14.02 instead of 13. I also don't need hacktivation since I have access to ATT SIM card. Problem is, I don't have access to a Mac right now so I can't do the custom IPSW.

    How do you do this without a Mac and no Sn0wbreeze?

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    My iPhone is a Part of Me iPittsburgh's Avatar
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    sn0wbreeze is like pwnagetool but for windows. You already have a baseband that cannot be unlocked and youre using AT&T so you dont really need to preserve baseband although I try to encourage preserving baseband.

    If you want sn0wbreeze you can find it at iH8sn0w.com | Jailbreak your iPod touches and iPhones
    Last edited by iPittsburgh; 02-12-2011 at 02:24 AM. Reason: Automerged Doublepost

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    IYeow - sounds like updating a 3G to 4.2.1 without updating BB is possible. Except no access to a MAC to create custom firmware. Any chance you can point me to one that is available?

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    Can you unlock with a 3gs 4.2.1 5.15.04BB and not use the ipad BB?

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    My iPhone is a Part of Me iPittsburgh's Avatar
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    Currently, No.

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    Super Moderator iYeow's Avatar
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    If your bb is 05.14 or 05.15, then you have to go with ipad bb to unlock but you might have to do some sacrifice. Read about ipad bb in www.devteam.org

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    ya im trying the ipad bb with redsn0w on 3gs but it gets as far as waiting for reboot message and sits there and a message pops up in windows saying this device can perform faster connected to usb 2.0.everytime i try same thing.
    running redsnow in xp sp2 compatability mode also.
    anyone got any ideas

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    Default Helpp!!
    Quote Originally Posted by iYeow View Post
    Make sure you update your itunes first.
    You can use Pwnage tools 4.1.3 to create a custom firmware of 4.2.1 with no BB update to preserve your 05.13.xx BB to be unlocked by Ultrasn0w.
    Use Redsn0w 0.9.6b6 and browse to stock 4.2.1, check only the box , dfu mode only.
    Once you have achieved dfu mode, run itunes, shift + restore to custom firmware of 4.2.1.
    I have included a copy in your PM box.

    Hi iYeow, I'm also using iPhone 3G on iOS 4.0.2 with BB- 05.13.04 (MB model)
    Can you please gimme the link to download Custom firmware 4.2.1 for 3G with preserving the BB to 05.13.04..
    you can mail me the link also if u can.. at [email protected]

    I would b thankful if u help..

  14. #13
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    Use sn0wbreeze 2.2.1 to make your own custom firmware. Sn0wbreeze 2.2.1 Jailbreak 4.2.1 / 4.2.6 on iPhone, iPad and iPod touch | Redmond Pie

    You cant post links or pm links of custom firmware on mmi.
    Last edited by iPittsburgh; 03-06-2011 at 06:07 AM. Reason: Automerged Doublepost

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    Quote Originally Posted by iPittsburgh View Post
    Use sn0wbreeze 2.2.1 to make your own custom firmware. Sn0wbreeze 2.2.1 Jailbreak 4.2.1 / 4.2.6 on iPhone, iPad and iPod touch | Redmond Pie

    You cant post links or pm links of custom firmware on mmi.
    Thank you so much for the information. Well now i'll try to make my own firmware & use it.
    Thanks again!!

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    Welcome. Good luck. I hope everything works well for you.

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    Thanks a tonnn dude.. it all went well n now m njoin iOS 4.2.1
    No doubt my iPhone 3G has become more responsive..
    Thanks for ur help..

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    Default iPhone Woes
    ..
    Last edited by iPittsburgh; 03-11-2011 at 12:57 PM. Reason: misplaced

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    I need some help please I have a 3G with Firmware 4.1 and 6.15.0 BB. I would like to upgrade FW to 4.2.1. I have tried a few things with iTunes but I can't seem to figure it out on my own. I am on windows. Any help would be greatly appreciated.

  22. #19
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    Download sn0wbreeze 2.2.1 from iH8sn0w.com | Jailbreak your iPod touches and iPhones and watch this video guide Sn0wbreeze 2.2.1 Jailbreak 4.2.1 / 4.2.6 on iPhone, iPad and iPod touch | Redmond Pie , it will show you how to operate sn0wbreeze.

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    Quote Originally Posted by iYeow View Post
    Make sure you update your itunes first.
    You can use Pwnage tools 4.1.3 to create a custom firmware of 4.2.1 with no BB update to preserve your 05.13.xx BB to be unlocked by Ultrasn0w.
    Use Redsn0w 0.9.6b6 and browse to stock 4.2.1, check only the box , dfu mode only.
    Once you have achieved dfu mode, run itunes, shift + restore to custom firmware of 4.2.1.
    I have included a copy in your PM box.
    i have also an iphone 3g with ios 4.1 and baseband 05.13.04 and i want to update it to 4.2.1 without ipad baseband . I need jailbreak,unlock and hacktivation. Is there any solution ? I don;t have mac only windows.


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