In my vacation trip, Setember next, I wanna buy a LG G3 in USA.
In Brazil, LG G3 has only 2gb of RAM and 16 gb of internal memory and LG G3 AT&T is cheaper (U$ 570), but I didn't find information about it.
Maybe you know the answers for my questions.
AT&T's model works on 4G LTE in 2600mhz (band 7)?
Has AT&T's model Portuguese-Brazil in language settings?
Which one is the model number of AT&T (F400, D855...)?
Can I use ROM retail of another G3 model?
I really appreciate for your help.