Firmware archive for a Casper laptop, with cky noted in the name and a board reference mt50in1 v.02, stored as a 2.84 MB RAR. Casper is a Turkish laptop brand; the mt50in1 code likely identifies the motherboard and v.02 its version, though no further details are stated. Extract the image and compare its size with the SPI flash chip before programming. Confirm the board marking reads the same version, and read the original chip first so the existing firmware can be restored.
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 →