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  1.    #1  
    hey guys

    if i get a cingular treo 650, is there a way for me to convert it to a sprint compatible phone? like someone i could pay to change around the machinery inside so that its a sprint compatible?
  2. #2  
    No you could not. Cingular is a GSM phone that uses a SIM card. Sprint's network is still all CDMA at this point.
    The only thing that separates the men from the the lessons they learn.
  3. DocGo's Avatar
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    Hmm, I think the only way is to swap innards of a CDMA (Sprint) Treo with your Cingular. They are 2 different hardware. Sprint uses CDMA and Cingular uses GSM.
    The Doctor is IN!
    Gadget: Rogers Treo 680 (unlocked) GSM
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  4. #4  
    Cingular phones are compatible with all GSM carriers (for all practical purposes just Cingular and T-Mobile), so long as the phone has been unlocked. Sprint uses CDMA, which at least theoretically should be able to convert over to Verizon - the other national CDMA carrier.

    The two different technologies are incompatible, though. And Nextel uses a third technology entirely.

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