BIOS package for a board labelled IP3 GN15A MB, version 20 dated 20210517A, archived as RAR at 5.50 MB. The name states an 8MB flash image, which fits a 64 Mbit SPI chip. No laptop brand is given in the name. Extract the image and program it with a tool such as a CH341A or similar programmer when the firmware is corrupt or the board will not post. Save a backup of the current chip contents, compare the board marking, and check that the image size equals the chip capacity.
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 →