How to jailbreak iPhone 3GS with MCxxxxx serial No?

Discussion in 'Jailbreaks and iOS Hacks' started by erichkooi, Mar 23, 2010.

  1. erichkooi macrumors member

    Joined:
    Nov 10, 2009
    #1
    Hi Guru,
    Is there anyone jailbreak on their iPhone 3GS with MCxxxxx serial no successfully?

    If yes, do u have any info on guide?


    Thanks in advance,
    Eric
    ps: I did search around and not much articles on jailbreak for above model.
     
  2. dhlizard macrumors G4

    dhlizard

    Joined:
    Mar 16, 2009
    Location:
    The Jailbreak Community
    #2
    MC is a model number, not a serial number.

    What matters is 2G, 3G or 3GS and firmware and baseband and bootrom (new or old).
     
  3. erichkooi thread starter macrumors member

    Joined:
    Nov 10, 2009
    #3

    Hi dhlizard,
    Thanks for info.

    Firmware version is 3.1.3 (7E18) n how can I check on baseband n bootrom?
     
  4. thelatinist macrumors 603

    thelatinist

    Joined:
    Aug 15, 2009
    Location:
    Connecticut, USA
    #4
    If you have a 3GS on 3.1.3, the only way you can jailbreak is to downgrade your phone to 3.1.2, since Apple eliminated the USB exploit that used to make jailbreaking possible on the 3GS. Unfortunately, since Apple has stopped signing the 3.1.2 firmware, you can only downgrade if you have saved your 3.1.2 SHSH either on Saurik's server through Cydia or locally using Umbrella. If you don't, then there is no way to jailbreak your phone.
     
  5. erichkooi thread starter macrumors member

    Joined:
    Nov 10, 2009
    #5
    Hi thelatinist,
    Thanks for the info.

    That mean step 1:
    I have to downgrade from 3.1.3 to 3.1.2 because 3.1.3 is not yet able to be jailbreak for 3GS set.

    Guide: http://www.ihackintosh.com/2010/02/downgrade-iphone-3gs-os-3-1-3-to-3-1-2-with-cydia-shsh/

    step 2: Download any blackra1n, redsnow or snowbreeze jailbreak n update it.

    That is all i need to do, right?

    PS: In case anything goes not as planned, i can update back to original 3.1.3 by restoring from iTunes.
     
  6. thelatinist macrumors 603

    thelatinist

    Joined:
    Aug 15, 2009
    Location:
    Connecticut, USA
    #6
    Yes to both questions. But this will only work provided that you were previously jailbroken and chose the "Make My Life Easier" option in Cydia.
     
  7. erichkooi thread starter macrumors member

    Joined:
    Nov 10, 2009
    #7
    Hi thelatinist,
    I never jailbreak that mean I cannot do anything, arggggg...
     
  8. scirica macrumors 68020

    scirica

    Joined:
    May 13, 2008
    Location:
    Dallas, TX
  9. erichkooi thread starter macrumors member

    Joined:
    Nov 10, 2009
    #9
    Hi guys,
    I also read on many topics in macrumors forum n everyone said it cannot be done on 3.1.3 with MC model n those we claimed they can r fake.

    But i found this guide that able to JB on MC model.
    http://www.youtube.com/user/kaubut0145#p/u/1/9t9kLJhbpWU
    and it looks very promising from the videos.

    Anyone try this method before?
     
  10. erichkooi thread starter macrumors member

    Joined:
    Nov 10, 2009
    #10
    Thread closed.
    Too many discussion same topics but different title.

    TQ.
    Eric
     

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