BIOS dump for an MSI laptop mainboard MS-16J61, revision 1.1, with the name noting a 25B64CSIG flash chip, a 64 Mbit SPI part. MS-16Jx numbers are MSI's own notebook board codes, and the last digit identifies the PCB variant. The 3.96 MB RAR should unpack to an image that fits this 8 MB chip for writing with a CH341A or RT809H programmer. Before flashing, confirm the board number and revision on the PCB and save the existing contents, which may hold serial and licensing data.
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 →