the Flash file EL71 v06 is support area is ok, but if u flash ur phone with it, and SST, it will not work (as u see no LG detected)
if Bootcore is ok (first 256Ko), Flash ur phone with V_Klay then do repair with SST, and phone will work
anyway
read first 256Ko of Flash or Fubu and send to me, i will try to help u