Firmware set for the Dell Latitude 5580 on board LA-E091P, containing a 16 MB BIOS image and a 1 MB EC firmware dump in an 8.28 MB RAR. LA-xxxxP numbers follow Compal, the ODM that built this board for Dell. Technicians write the BIOS file to the main SPI flash and the EC file to the embedded controller chip with a programmer to revive a dead or locked board. Read and save both original chips first, and check that the LA-E091P code on the PCB matches.
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 →