BIOS and EC firmware for the MSI Sword 15 A11UC gaming laptop, listing boards MS-1582 and MS-15821. MSI uses the MS-xxxx project number with an added digit for the specific board variant, so MS-15821 is the main board number to check against the PCB. The EC image governs power-up, fans and charging, and a corrupted copy can cause a dead machine. Dump both original chips with an SPI programmer and confirm sizes match 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 →