Compact RAR archive of 955 KB holding BIOS firmware for Compal board LA-4212P, with the platform code JIWA3 in the name. The LA-xxxxP pattern is the Compal motherboard numbering scheme, used here in Lenovo 3000 G530 class laptops. Such a dump is written to the SPI flash chip with a programmer when the machine fails to boot or the BIOS is corrupted. Confirm the LA number printed on the PCB, back up the original chip before writing, and verify the image length suits the chip installed.
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 →