Sim Card Questions

vizanto

    Would a 4G T-Mobile Sim Card be compatible with all 6 4G bands? Is there a way to check which frequencies and Bands my SIM card is compatible with?

      All replies

      • syaoran

        Re: Sim Card Questions

        How old is the SIM?  Older SIM's can be limited in capacity, which might not imclude band 71 support and potentially band 12, depending on how old it is.  If your debide supporsu all of the T-Mobile bands, you can use Cell Mapper if you are in a band 71 area to see if you can see it and if it is identified or shows as unknown.

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        • snn555

          Re: Sim Card Questions

          It's not so much the SIM card it's the phone you're using. The phone you're using has to be compatible and capable with all of the available bands T-Mobile uses. The SIM card only IDs you on the network.

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          • tmo_mike_c

            Re: Sim Card Questions

            I'm curious about how old the SIM is as well as the kind of phone you're using. If you're using a new SIM card, I'd be more interested in the phones network capabilities to determine what bands it'll connect to.