I want to flash my w580i with chinese language support. I just like to know if I can mix and match the Main and FS. like use

W580_R8BA024_MAIN_GENERIC_LA_RED52
W580_R8BA024_FS_CHINA_RED52

together or have the two has to be the same?

W580_R8BA024_MAIN_CHINA_LA_RED52
W580_R8BA024_FS_CHINA_RED52