BIOS archive for the MSI Claw handheld, with the name mentioning CH431 and the French word for desoldered, implying the dump was read with the flash chip removed from the board. Reading off-board avoids interference from the powered circuit and gives a cleaner image. Extract the RAR, then write the file using a programmer such as a CH341A. Confirm the chip type and capacity match the image, and back up your own chip before writing, since serial and configuration data can differ between units.
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 @anztechnology. 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 →