Had a Lumia 928. I was told the phone was not fully compatible because Verizon locks out some of the bands on other networks for US usage, even though the phone is factory unlocked. I was told that as long as I got an ATT phone and use the ST sim I would be fine.
Now, on to the new issue. I received my very expensive, newly purchased, Lumia 1520. I popped the SIM in and set all of the APN settings and still no MMS. As far as data, I am showing 4g, but no LTE, and the speeds are very slow. Speedtest yielded just over 1mb dl and .32mb dl.
Please help me. My switch over to ST was supposed to save me money. At this point, two lines, two contract cancellations and two new phones to replace the one's that wouldn't work, has cost me nearly $1,000.