MSI laptop BIOS for the MS-16J61 motherboard, revision 1.1, with the label 25B64CSIG in the name, which probably refers to a 64 Mbit 25-series SPI flash chip. The 3.91 MB RAR is meant for reprogramming that chip when the notebook fails to boot. MSI uses MS-xxxxx numbers for its own boards, with the last digit indicating the variant, printed on the PCB. Compare the number and revision, read and save the original chip first, and check that the image size matches the flash capacity 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.
All sources (3)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @biosarchive | 23 Jan 2021 | Open file on RM Schematics |
| @biositechyangiyer | 1 Feb 2021 | Open file on RM Schematics |
| @biosdumpcomputer | 26 May 2022 | Open file on RM Schematics |
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 →