Working BIOS image for a Lenovo ThinkBook built on Quanta board DALVACMB8D0, revision D, size 16.0 MB and saved without an extension. Quanta's DA...MB... code shows the platform and the 8D0 suffix the revision. The raw dump is flashed to the SPI chip with an external programmer to fix a board that will not boot due to corrupted firmware. Check the chip is 16 MB, back up the existing contents to keep serial and key data, and verify the PCB number 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 @bios_laptopomi. Enginerys does not host this file.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →