I wanted to know what the differences were between the international and ATT version of the 1520?
Will the 937 work on voice and 4G bands in the US on T-Mobile? I can't spend $750 for a phone.
The 1520.1 or RM-937 was made for Europe and has the wrong LTE Classes for US compatibility.
That's not an answer for whether or not it'll still work on voice and 4G.