Sprint iPhone 4S unlocked?

Discussion in 'iPhone' started by tito2020, Sep 29, 2012.

  1. tito2020 macrumors 6502a

    Joined:
    Oct 16, 2011
    #1
    Called sprint to unlock my iPhone 4s hooked up to iTunes gave me your device is now unlocked then I tried to put T-Mobile sim card gives me error its not compatible with your phone and no service.
     
  2. r.j.s Moderator emeritus

    r.j.s

    Joined:
    Mar 7, 2007
    Location:
    Texas
    #2
    You can't use CDMA (Sprint and Verizon) phones on GSM networks (AT&T and T-Mobile)
     
  3. tito2020 thread starter macrumors 6502a

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    Oct 16, 2011
    #3
    So I would need to get a different provider sim card?
     
  4. kalex macrumors 65816

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    Oct 1, 2007
    #4
    yes outside of US

    there is a way to do it but its a bit more involved and requires jailbreak plus sim impostor cards
     
  5. foxnews1 macrumors 6502

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    Mar 16, 2010
    #5
    fortunately, Verizon CDMA IP5 can be used on AT&T with 3G and unlocked out of the box.
     
  6. mds macrumors 6502

    Joined:
    Oct 6, 2006
    #6
    This is not true anymore. The iPhone 4S is a world phone and supports both CDMA and GSM. Supposedly Sprint is not locking the use of GSM networks on its 4s phones outside of the US. If you're here, and using ATT, T-Mobile, etc, it won't work. In theory it should work abroad.
     
  7. mrkramer macrumors 603

    mrkramer

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    #7
    I'm not sure if you were intending to say that it can't be used on any GSM network which would be wrong as since the iPhone 4S which the OP has the CDMA iPhones have included GSM as well for roaming, but it can be unlocked for use on GSM networks, I'm doing it right now with a Verizon iPhone. If you were intending to say that they can't be used on AT&T and T-Mobile then you would be correct at least for Verizon and I believe Sprint as well, they leave them locked so they won't work on other US carriers. This may have changed with the 5 though.
     
  8. r.j.s Moderator emeritus

    r.j.s

    Joined:
    Mar 7, 2007
    Location:
    Texas
    #8
    No. In the US, you need to get an unlocked AT&T (or factory unlocked) 4S to use on T-Mobile or switch to Sprint to use the current 4S you have.

    ----------

    I wasn't intending to mean ANY GSM carrier - just the ones in the US.
     
  9. tito2020 thread starter macrumors 6502a

    Joined:
    Oct 16, 2011
    #9
    Well the customer service rep said my phone had been unlocked for the life of the phone. I guess only international sim cards will work. so I guess I cant use like eg:simple mobile,tmobile ect... sim cards.
     
  10. r.j.s Moderator emeritus

    r.j.s

    Joined:
    Mar 7, 2007
    Location:
    Texas
    #10
    Correct. International only.
     
  11. kendu2412 macrumors regular

    Joined:
    Sep 14, 2012
    Location:
    Fairfield CA
    #11
    I did for unlocked my iPhone 4S with Sprint, yes , unlocked .
    But only work with 128K sim card ( T Mobile & ATT using 256K sim card right now $ ) , that why T Mobile and ATT not work.

    I used that phone when I went back to my country ( Vietnam ) and purchased a 128K sim card , good signal and 3G on my screen.
     
  12. tito2020 thread starter macrumors 6502a

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    Oct 16, 2011
  13. SenseiPhone macrumors regular

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    Jun 9, 2011
    #13
    That would be different case for Verizon iPhone 5.
     
  14. jsanchezmia macrumors newbie

    Joined:
    Jan 17, 2013
    #14
    Sprint/Verizon iphone for At&t and T-Mobile

    I have read that Sprint/Verizon iphone's cannot work on US based GSM carriers, however I have seen ads on craigslist stating they can unlock Sprint and Verizon iphone's to work on At&t and T-Mobile. Therefore, there must be a way to get this done. The ad on CL is asking for $80 to facilitate this service. I am sure there is a cheaper way.
     

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