BIOS dump labelled IBM T430, LSN-4 UMA, for Wistron board 11263-1, with the code 0C00036DA in the name, delivered as a ZIP of about 4.75 MB. UMA means the integrated-graphics build without a discrete GPU. Wistron uses this five-digit project numbering with a revision suffix, so confirm the number on your board. Read and keep a backup of the original SPI chip with a programmer such as a CH341A before writing, and check that the image size matches the chip capacity.
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 →