Lenovo IdeaPad U310 BIOS for the Quanta board DA0LZ7MB8E0, revision E, labelled as a working image and packed in a RAR of about 3 MB. Quanta uses the DA0 prefix plus project code, here LZ7, printed on the PCB, and the trailing letter indicates revision. Technicians write this kind of dump to the SPI chip with a programmer to fix no-boot or brick conditions after a failed update. Confirm the board number and revision match, save the original chip contents first, and check the image size fits.
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 .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →