About Matsushita UJ240

HI ! everyone.
I search for a long time, it seems that there is very little discussion about Matsushita ,Especially BD.
I have a Matsushita UJ141 Bd-rom, the difference between it and UJ240 is only FW, but I can’t refresh, can anyone tell me the method?
Who used LG_FW_Update and How, I can’t use that