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  1.    #1  
    I want a Treo, but the 600s really stink, compared to the 650s. Will my TM SIM work in a 650? Must it be an unbranded one, or can I go to a Cingular store and just buy one or find one online???
  2.    #2  
    I want a Treo, but the 600s really stink, compared to the 650s. Will my TM SIM work in a 650? Must it be an unbranded one, or can I go to a Cingular store and just buy one or find one online???
  3. #3  
    oh no, a double poster (also in Treo General), shame shame!
  4.    #4  
    He he, just trying to cover all the bases...................
  5. #5  
    <merged> Please do avoid double posting.

    If you already have Cingular service, your SIM will work. Review your current plan, data access can be expensive if you don't have the right plan for access.

    Edit: TM means TMobile? Then you do need to get unlock GSM. I use TMo and have no problems unlocked 650. Just pop the SIM in and it works.
    Last edited by ronbo2000; 12/27/2005 at 12:07 AM.

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