1. AC Question's Avatar
    I recently bought a US Cellular S4 off of a friend in hopes that I could use it on straight talk, however, Straight Talk keeps telling me that my phone won't work because it's CDMA.

    I researched the difference between CDMA and GSM and everything tells me that if the phone has a Sim Card, then it is GSM. Well, my phone does have a Sim Card, therefore, Straight Talk support is full of a bunch of idiots and I can actually buy a Sim Card from them and use their service, right?

    09-15-2014 10:16 PM
  2. Golfdriver97's Avatar
    If you have LTE, that is probably why you have a SIM.
    09-15-2014 11:24 PM

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