Firmware dump in a 143 KB RAR archive labelled S20B315B, which appears to be a monitor model code; no brand, chip type or version is given in the name. Small images like this usually come from the SPI flash or EEPROM on a monitor main board and are written with a programmer such as a CH341A when the display stays dark, loops on boot or shows a corrupted menu. Read and save the original chip contents first, and make sure the image size matches the capacity of the flash on your board before writing.
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 .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →