new Verizon iPhone works with AT&T SIM card, but can't pick up HSPA+ or 4G?

Discussion in 'iPhone' started by Taisiya, Nov 22, 2016.

  1. Taisiya macrumors regular

    Nov 16, 2015
    I got a new Verizon iPhone SE 64gb.

    When I put my postpaid AT&T SIM card inside, it will only show AT&T 3G. No HSPA+ or 4G.

    If I plug that same SIM card into my other Verizon phone, a Samsung Galaxy S7 edge, it will have no problem picking up HSPA+ immediately.(in fact, it never even bothers connecing to 3G) Not 4G, since the Samsung doesn't have the 4G bands for AT&T.

    Are there some settings that I need to change or add, in order for the Verizon iPhone to pick up AT&T's HSPA+ and/or 4G bands? In settings, there's an option for 4G. I've tried turning it on and off. No difference.

  2. Taisiya thread starter macrumors regular

    Nov 16, 2015
    Thanks! :)

    I do this the model mentioned in the article.

    "model A1662. It has the LTE bands for
    AT&T (2/4/5/17/29), T-Mobile (2/4/12), and Verizon (4/13)"

    Doesn't that mean it should pick up AT&T without any issue?
    (especially since the same AT&T SIM card I tried was able to
    allow two Samsung phones to at least pick up HSPA+ band
    on AT&T)

    Apple's own website lists the same bands for the A1662:

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