MSI CR420 MS-14531 REV 1.2 BIOS & EC

BIOS .rar 1.40 MB Shared

BIOS and EC firmware package for the MSI CR420 notebook built on mainboard MS-14531, revision 1.2, supplied as a 1.40 MB RAR archive. Having both the system BIOS and the embedded controller firmware together helps when a board shows no power, no display or a dead keyboard after a failed update. MS-numbering is MSI's own in-house board scheme. Confirm the MS-14531 marking and Rev 1.2 on the PCB, read and save the original chip with a programmer first, and check that each image size matches its target flash 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.

7-ZipWinRARThe Unarchiver (macOS)

More about .rar files

Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →

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