BIOS image for the Dell Inspiron 15 5548, built on the Compal LA-B016P board, taken from a Winbond W25Q64 flash chip. The W25Q64 is a 64 Mbit, 8 MB SPI part, so the image should match that capacity when programmed with a CH341A or similar tool. Technicians use dumps like this to fix no-POST, black-screen or boot-loop faults caused by corrupted firmware. Confirm the LA-B016P marking on the PCB, and back up the existing chip first, since it holds the service tag and other unit data.
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 →