Working BIOS set for the Lenovo G710 laptop on board DUMB02, revision 2.1, containing images for both a 4 MB and a 2 MB flash chip. Boards like this can split firmware across two SPI chips, so each file must go to the chip of matching capacity. The RAR archive totals about 6.5 MB. Use a programmer such as a CH341A, back up both original chips before writing, and check the revision printed on the board reads 2.1 so the images suit your hardware.</description>
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 →