BIOS plus EC firmware for the MSI CX620, model MS-1688, with motherboard MS-16881 revision 1.1, in a 1.50 MB RAR archive. MSI builds its own boards, where the five-digit MS-16881 identifies the mainboard of the MS-1688 model. The EC image restores power and charging control while the BIOS image restores boot firmware. Check the board number and revision on the PCB, back up both chips with a programmer before erasing, and confirm each image size matches its chip.
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 →