lenovo e485 vram mod

[lunaticofgod]

So recently updated to the latest bios to find i still cannot chang the amount of vram in my bios,  they updated it on the next model but not mine.
How do i start with this, i seen in the main section a bunch of firmware manufactures. I downloaded cpuid and have looked in the uefi, but have not found any information telling who it is.
I know how to physically flash the bios, i just have no idea where to start with this part.
When i unpacked the bios for my system i found this, am i right to just mod the file getting flashed, or should i physically obtain an image of the chip, or is there another way to dump it without contact to the chip.

This is the function i wish to unlock.
https://forums.lenovo.com/t5/ThinkPad-11...-p/4509078