BIOS for the CA10SU / CA10CU main board, revision 2.1, a 2 MB image (16 Mbit flash) in a 1.33 MB zip. These board codes belong to Toshiba Satellite models such as the E45T and S40T, although the file name itself names no laptop. Use it to reprogram a corrupt BIOS chip with an SPI programmer. Check the revision on the PCB reads 2.1 and that the chip is 2 MB, and back up the original contents 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 .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 →