BIOS and EC firmware for the Dell Latitude E5520 with Intel platform, board project KRUG 15, UMA integrated graphics, revision A01, in a 2.39 MB rar archive. The name does not state a motherboard number or BIOS version. Carrying both images helps recover units with no power, charging faults or corrupted BIOS, each written to its chip with a programmer. Check the board revision A01 and UMA variant against your PCB, back up the original chips, since they hold the service tag, and confirm image sizes match the flash 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 →