BIOS image for the Lenovo G550 built on Compal mainboard LA-5082P, revision 2.0, packed into a 1.14 MB 7z file. The revision matters because Compal boards with the same LA number can differ between revisions, so read the marking near the board code. Technicians flash this kind of dump onto the SPI chip with a programmer to bring back a board with corrupted firmware or no POST. Save the current chip contents first, and confirm the image size fits the installed flash part.
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 @biosfiles. Enginerys does not host this file.
How to open a .7z file
High-ratio compressed archive, often used for large BIOS collections.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →