Samsung R590 BIOS dump labelled JS01SA, presumably a regional or configuration code, and tagged ok as a working image. The 4 MB binary fits a 32 Mbit SPI flash and is programmed directly onto the chip with an external programmer. Technicians use it to revive boards with corrupted firmware. A second copy with the same label exists in this catalogue, so compare checksums if both are available. Back up the original contents and check the board number before flashing.
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 @biosarchive. 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 →