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  1. #1
    NH2010
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    I recently purchased a lightly used Treo 600 that's branded as a Cingular device. Unfortunately, when I put in my AT&T SIM card (it's a prepaid SIM Card) the phone doesn't detect the network, even when I hold down the power / end button and search for the network.

    Any suggestions?


    See More: AT&T SIM Card Not working in Cingular Treo




  2. #2
    tavenger5
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    Re: AT&T SIM Card Not working in Cingular Treo

    To keep this to one thread, please answer here:
    http://cellphoneforums.net/att/t2955...martphone.html
    John

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