Generic V59 universal board firmware, variant 031, configured for a 1366x768 panel, with CH and M90 tokens that probably indicate configuration or remote codes. The RAR archive is 2.37 MB, consistent with a single flash image. Such files are written by USB update or directly to the SPI chip using a programmer. Make sure the panel resolution and board variant match the hardware. Read and store the original firmware before writing so the previous configuration can be restored if needed.
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_bin_file. 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 →