1. AC Question's Avatar
    I just bought a Verizon S6 and I put my AT&T sim into it. Now I have a few questions regarding this:

    How do I know if I am using 4g? and have all AT&T bands?

    How do I get rid of the 'Not a Verizon SIM' pop-up?

    How do I update to at least 5.1.1 or even Marshmellow? I get a 'Service unavailable' message when I try to search for updates...
    10-16-2015 03:00 PM
  2. Gaston Garcia's Avatar
    Hi. The way to get rid of the "Not a Verizon SIM" is by going into Settings and adding AT&T's APN settings.

    As far as all the AT&T Bands, I'm sure you're using everything fine, and also that you'll get 4G fine too.
    10-20-2015 11:27 AM

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