Tested BIOS dump for the Lenovo IdeaPad Z580 laptop, motherboard DALZ3AMB8E0 revision E, supplied as a RAR archive. The DA prefix marks a Quanta-designed board. Technicians write such an image to the SPI flash chip with a programmer like a CH341A or RT809 to revive a board that powers on with no picture or loops on boot. Back up the existing chip before erasing it, check that the image size fits the chip capacity, and confirm rev E is printed on your PCB.
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 @generalbios. 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 →