Surface Pro 4 BIOS for logic board X910540-007, marked as tested and working, in a 12.1 MB ZIP archive. The larger size suggests the archive may include more than one image or supporting files, so inspect its contents before use. Technicians use such dumps to revive a tablet that powers on with no display after flash corruption. Compare the board number printed on your logic board, save the original chip read with a programmer, and verify that the image length matches the SPI flash 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 →