Firmware package labelled SDMI ACN1S MB V30 dated 2021-09-30, compressed as a 16.2 MB ZIP. The tokens suggest a mainboard (MB) firmware release, version V30, but the name does not state brand or device model, so its target hardware must be confirmed separately. Archives like this usually hold a BIOS image and sometimes flashing utilities. Open it with any ZIP tool, compare the image size with the SPI chip on the board, and save a backup of the existing chip before programming.
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 @boardsscanrepo. Enginerys does not host this file.
How to open a .zip file
Compressed archive that every operating system opens without extra software.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →