unlock iphone4 4.2.1

Discussion in 'Jailbreaks and iOS Hacks' started by danxhafa, Feb 3, 2011.

  1. danxhafa, Feb 3, 2011
    Last edited: Feb 4, 2011

    danxhafa macrumors newbie

    Joined:
    Jan 22, 2011
    #1
    how can i unlock my iphone4.2.1 from AT&T services
    thnx

    i don't know were can i find the baseband on the iphone.
    thnxs
     
  2. Grimsrud macrumors member

    Joined:
    Aug 11, 2010
    #2
    It's not possible yet. If it were, I would already have my jailbroken unlocked iPhone 4 on eBay so I can buy a factory unlocked one for a small loss that will never depend upon a jailbreak.
     
  3. jav6454 macrumors P6

    jav6454

    Joined:
    Nov 14, 2007
    Location:
    1 Geostationary Tower Plaza
    #3
    Sorry there, no unlock right now for any 4.2.1+ device.
     
  4. hackthatphone macrumors 68000

    hackthatphone

    Joined:
    Jul 28, 2010
    #4
    What no one has bothered to ask you yet is what modem firmware version is currently on your phone. Everyone is assuming it's an unlockable version. Only you know for sure. Why don't you post the version number.
     
  5. Crystal-RX macrumors 68030

    Crystal-RX

    Joined:
    Dec 22, 2008
    Location:
    Seattle, WA USA
    #5
    I totally agree with you. Baseband is determined whether Iphone can be unlocked or not. Except Iphone 4 with baseband higher than 01.59 can't be unlocked. 3G & 3GS with currently baseband can be update to Ipad baseband and unlock with ultrasn0w.
     
  6. gooddeal macrumors regular

    gooddeal

    Joined:
    Aug 3, 2008
    Location:
    PA
    #6
    Don't all iPhones 4 w/ 4.2.1 come w/ new bb?
     
  7. Applejuiced macrumors Westmere

    Applejuiced

    Joined:
    Apr 16, 2008
    Location:
    At the iPhone hacks section.
    #7
    Judging by his question I dont think he did preserve his baseband from 4.0.2 and below towards 4.2.1
    He's obviously on stock 4.2.1 with the latest baseband and he cannot unlock it at the moment.
    Simple.
     
  8. ravn33t macrumors newbie

    Joined:
    Mar 2, 2011
    #8
    help me out

    I have a iphone 4 that my friend brought from Canada. I am in India right now. And want to use it here with a local sim card . It is locked on Rogers (Canada provider). My iphone 4 iOS is 4.2.1 and the baseband is 03.10.01. Tell me what to do?
     
  9. dhlizard macrumors G4

    dhlizard

    Joined:
    Mar 16, 2009
    Location:
    The Jailbreak Community
    #9
    You cannot unlock your phone, yet.
     
  10. labman macrumors 604

    labman

    Joined:
    Jun 9, 2009
    Location:
    Mich near Detroit
    #10
    Maybe soon after 4.3 release but for now there is no unlock as others have said. Dev-team has said they will release a updated ultrasn0w when 4.3 comes out.
     
  11. swoosh0217 macrumors 6502a

    swoosh0217

    Joined:
    Nov 20, 2007
    Location:
    NW
    #11
    Since your title was deceiving sorry I have to rub this in.....

    I have an unlock iPhone 4 with 1.59 baseband and a 4.2.1FW!
     
  12. eastercat macrumors 68040

    eastercat

    Joined:
    Mar 3, 2008
    Location:
    PDX
    #12
    Way to rub it in the OP's face that you're not clueless and actually know your bb. I bet you even have your blobs. :D
     
  13. swoosh0217 macrumors 6502a

    swoosh0217

    Joined:
    Nov 20, 2007
    Location:
    NW
    #13
    Yes the best part about it is I have 4 different blobs save if anything happens. Thank god for TU!
     
  14. dhlizard macrumors G4

    dhlizard

    Joined:
    Mar 16, 2009
    Location:
    The Jailbreak Community
    #14
    Looks like @swoosh has turned this thread into a "one up" thing :rolleyes:

    Actually the OP could actually have up to 4 hashes saved also depending on when he received his phone and when or if he bothered to read about jailbreaking/TinyUmbrella (however, reading the gist of the thread, I will concede it is unlikely the OP has done so)

    And @swoosh, many of us have 8 hashes saved for our iPhone4 iDevices (and I agree it is great to have them for those catastrophic restore situations) :)
     
  15. eastercat macrumors 68040

    eastercat

    Joined:
    Mar 3, 2008
    Location:
    PDX
    #15
    I only started saving my blobs (five) starting with 4.0.1; when you get your phone a couple of months after the release date, these things happen.
    When someone can't even find their bb, I give up any hope that they had the foresight to save their blobs.
    Is it that hard to find the bb? Before I knew what the bb was, I knew where to look for it because the numbers looked similar to the ones I saw in the about section of the settings menu. If you don't have an innate curiosity, jb/unlocking is going to be that much harder.
     
  16. wayneholbrook macrumors regular

    wayneholbrook

    Joined:
    Mar 30, 2010
    Location:
    Miami Florida
    #16
    Just to be sure guys, I have a Iphone 4 version 4.2.1 and baseband: 03.10.01 is this still unlockable?

    I want to swap from AT&T badly but don't want to loose my Iphone.
     
  17. Applejuiced macrumors Westmere

    Applejuiced

    Joined:
    Apr 16, 2008
    Location:
    At the iPhone hacks section.
    #17
    No, it cannot be unlocked yet.
    Maybe down the road though.
     
  18. nukem170 macrumors member

    Joined:
    Feb 14, 2011
  19. muyaad macrumors member

    Joined:
    Feb 21, 2011
    Location:
    Cairo, Egypt
    #19
    Saying that an iPhone4 4.2.1 is locked to AT&T, isn't it possible to use SAM to activate that iphone for T-mobile?
    or there's is no way to activation b4 unlock?
     
  20. Applejuiced macrumors Westmere

    Applejuiced

    Joined:
    Apr 16, 2008
    Location:
    At the iPhone hacks section.
    #20
    No.
    Activation and unlock are 2 different things.
    You can hactivate but the phone won't accept a foreign sim without being unlocked.
     
  21. muyaad macrumors member

    Joined:
    Feb 21, 2011
    Location:
    Cairo, Egypt
    #21
    I used SAM to activate iPhone 3GS 4.2.1 firmware but I couldn't have it done on iPhone4 4.2.1 firmware. Does anyone know why?
     
  22. TheBigKing macrumors 65816

    TheBigKing

    Joined:
    Jul 27, 2010
    Location:
    PR
    #22
    if i downgrade to ios 4.0.1 my baseband downgrade two or not ?
     
  23. Crystal-RX macrumors 68030

    Crystal-RX

    Joined:
    Dec 22, 2008
    Location:
    Seattle, WA USA
    #23
    You can't,
     
  24. Applejuiced macrumors Westmere

    Applejuiced

    Joined:
    Apr 16, 2008
    Location:
    At the iPhone hacks section.
    #24
    No.
     
  25. BlindSoul macrumors 6502

    Joined:
    May 30, 2010
    Location:
    Israel
    #25
    Anyways you and me and all others waiting for the unlock are ****ed up. It seems like it will never be released.
     

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