BIOS dump in a RAR archive for a Corvo 15 laptop on board 18741-1, which follows Wistron's board numbering scheme. The name states a 16 MB flash, which corresponds to a 128 Mbit SPI chip, and the double OK tag means it is reported as tested and working. Use it to rewrite a corrupted flash with an external programmer after saving the original contents. Confirm that the 18741-1 marking on the PCB matches and that the image fills the chip exactly 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 →