Firmware archive referencing the Lenovo Z580 by model name, with an additional number 20135 that likely corresponds to the machine type, though the name does not confirm it. No board number or revision is given, so verify the motherboard markings before use. A dump of this kind is written to the SPI BIOS chip with an external programmer to recover a board with corrupted firmware. Read and keep the original chip contents first, and check that the image size matches the capacity of the flash chip on your board.
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 @Laptopdesktopbios. 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 →