BIOS image for the Lenovo ThinkPad T400 on the MLB3I-7 board, packed into a 3.01 MB ZIP archive. The name gives no chip type or capacity, so check the image size against the SPI flash fitted on your board, usually a 4 MB part on this generation. Such dumps are used to recover a machine after a failed update or a corrupted BIOS. Read and save the original contents first with a programmer, since the stock chip holds machine-specific data such as serial number and UUID that you may want to restore.
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 →