BIOS binary of 4.00 MB whose name refers to an R540 with the retail configuration code JS05RU; the name does not state the brand, board number or version. The code looks like a Samsung R540 regional SKU, but that is not confirmed here. A 4 MB image matches a 32 Mbit SPI chip. Before writing, identify the motherboard number on the PCB and compare it with a known dump, save the original chip contents with a programmer, and verify the write to avoid bricking the board.
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 @biosfilebins. 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 →