A 2 MB BIOS image marked L850, with the tokens PLF, CSF, 45W and UMA in its name. UMA normally means integrated graphics only, with no discrete GPU, and 45W most likely refers to the adapter or CPU power class of the variant; PLF and CSF are not explained in the name. The raw binary is written to a 16 Mbit SPI chip with a programmer. Make sure the board matches the UMA configuration and back up the original flash before writing, since images for discrete-graphics versions differ.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @bios_laptop. Enginerys does not host this file.
How to open a .bin file
A raw, byte-for-byte image of a flash chip: the main BIOS / UEFI, the embedded-controller (EC) firmware, or both.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →