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by Anonymous on May 2nd, 2006

Anonymous

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Can I use a T-Mobile SIM card with a Cingular cell phone?

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Answers. 3 helpful answers below.

  • by ennapa on August 26th, 2009

    ennapa

    If that cellphone is Unlocked Cellphone means you can really use the Sim card in cingular cellphone I using the Unlocked Motorola Mobile I unlocked that Mobile using the Unlocking Code Purchased in the site http://www.mobile-unlocker.com/ I now using AT&T SIMbefore unlocking i use T-Mobile US.

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  • by dukeofmaui on November 21st, 2006

    dukeofmaui

    A T-mobile SIM card can be used in a phone origionally designed for Cingular if the phone is unlocked.

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  • by Anonymous on May 28th, 2006

    Anonymous

    Probably not. most cellphone services use different security codes, just like your credit card. this is a security measure to prevent airtime theft and for different communication connections. call a t-mobile service representative to receive a definite answer to your question.

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