BIOS archive labelled for the Lenovo G505 and G405 models according to the name, although the brand itself is not stated. The ZIP is 1.81 MB, so it is likely compressed; check what is inside before writing. No board number or version is provided, so compare against the mainboard code on the PCB to ensure compatibility. An external SPI programmer is used to restore a corrupted chip. Confirm the image size matches the flash capacity and back up the original contents first.
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 @biosbigarchives. 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 →