Sorry I'm not very experienced with this stuff.
I clean flashed this ROM (N910TUVU2EQI2_stock_deodex) and for some reason the baseband version is still N910T3UVS3EQB1
I have TWRP Recovery and flashed from there.
What am I doing wrong?
Baseband is modem, if you want to upgrade your modem you have to your flash modem for T3 version.