Upgrade 3G to 4.2.1 w/ BB preserved

Discussion in 'Jailbreaks and iOS Hacks' started by von.saiko, Jan 26, 2011.

  1. von.saiko macrumors newbie

    Joined:
    Apr 15, 2010
    #1
    Hi,

    I got a JB 3G on 3.1.3 with 05.12.01 BB currently stuck on apple logo.
    Wanted to upgrade/restore to 4.2.1 and preserve the BB.

    So far i know PwnageTool is the way.

    Problem no.1 - I don't have a mac (tho i might ask someone to make a custom ipsw for me... )
    Perhaps somebody can provide me with a custom 3G 4.2.1 ipsw that has only activation and no multitasking, no home wallpaper while preserving BB?
    Also is a previously JB iphone needed for this to work?

    Problem no.2 - I keep seeing people complaining that PwnageTool and 4.2.1 don't really mix on 3G as Cydia keeps crashing.
    RedSn0w is the only way?

    It would be nice if somebody who actually has a working 4.2.1 3G with BB <5.13, and has used PwnageTool to achieve this, could answer :)
     
  2. Bl0ckHe1d macrumors 6502

    Bl0ckHe1d

    Joined:
    Nov 19, 2009
    Location:
    Caledonia
    #2
    not sure why you wish to preserve your iphone 3G baseband unless for unlock reasons.

    if you require unlocking then the ultrasn0w can do this for you regardless the baseband version as musclenerd has confirmed that the iphone 3G will always remain unlocked at iOS 4.1.2 (Baseband 05.15.04) as Apple are no longer supporting the iphone 3G.

    as always - jailbreak using redsn0w and unlock using ultrasn0w

    jailbreak tutorial : http://www.iclarified.com/jailbreak/

    unlock tutorial: http://www.iclarified.com/unlock/
     
  3. von.saiko thread starter macrumors newbie

    Joined:
    Apr 15, 2010
    #3
    lol bingo
    Ok that I didn't know? Source please?
    I mean, why are people then using 6.15 BB from iPad on 3G ??
    http://www.iclarified.com/entry/index.php?enid=13000
    It clearly says: "You will now be asked if you want to update your baseband to the 06.15 version. If you are on 05.14 or 05.15 or higher you will need to do this to unlock."
     
  4. Bl0ckHe1d macrumors 6502

    Bl0ckHe1d

    Joined:
    Nov 19, 2009
    Location:
    Caledonia
    #4
    you will get the source from the above tutorials!

    you are not unlocking an ipad so disregard that part!
     
  5. von.saiko thread starter macrumors newbie

    Joined:
    Apr 15, 2010
    #5
  6. Bl0ckHe1d macrumors 6502

    Bl0ckHe1d

    Joined:
    Nov 19, 2009
    Location:
    Caledonia
    #6
    you sir are correct - just ate the horses b0ll0cks!! been searching and i am sure i seen something - somewhere, grr not good enough!!

    sorry to lead you astray...:eek:
     
  7. von.saiko thread starter macrumors newbie

    Joined:
    Apr 15, 2010
    #7
    So, has anyone used PwnageTool to JB the 4.2.1 version?
    What about stability and what about issues i heard that cydia was crashing?
     

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