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  1. Thread Author  Thread Author    #1  

    Default AT&T Samsung gs4 unlocked with Verizon

    I have an unlocked samsung galaxy s4 from AT&T but my service provider is verizon. If I purchase a 4g lte SIM card from the verizon store will I be able to use it with this phone?
  2. #2  

    Default Re: AT&T Samsung gs4 unlocked with Verizon

    The problem would be making calls, since Verizon uses CDMA (not considering VoLTE for now, since it isn't widespread yet) for voice calls. The AT&T S4 probably doesn't have a CDMA radio, only GSM. Using a SIM card from Verizon, you could get LTE mobile data, but no voice signal.

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