I'm kinda disappointed.
I bought a brand new HTC one m7 but didn't know that were some variants out there in the market.
I checked in fastboot mode and my variant is M7_U (gsm version). digging in the web I found that all variants got the same hardware, and the soc S600 brings LTE support as well.
So how do I enable LTE radio? I also found I need minimum requirements as S-off, superCID (I don't know what it is, need explain) and other things I guess basend needs. So, how do I enable lte? Is there a tutorial? A thread? Thanks for your knowledge guys, cheers.