Is RM-825 missing some LTE bands?

[ygtgngr]

I have a n unlocked RM-825 and I want to use it with US LTE bands. I tried to flash RM-824 (AT&T) rom but nokia care suite didn't give me permission to that. So I flashed Orange France LTE Enabled rom but still I don't have LTE signal the most I get is H+. Any advices?