LG G Flex 2, Ls996, Help to make flash, octopus has no firmware.

Hello friends, I am new to the forum. Sorry for my basic English. I have a problem.
Look octuplus support this firmware to flash, but does not. After searching I found a page with firmware LG, where I’m going down this:

ARGENTINA
1 TFS / TELEFONICA (ARGENTINA) V15A LGH955AR 13

My question is this, the file says LGH955AR’m going down, you have to see this? H955? It makes no sense to name LS996 cell.
Not if the LG I have is a Chinese copy or.
I want to change the firmware because I have MOVISTAR and I want to walk 4G.

Help me please? :rolleyes: