Main BIOS image for the Dell Latitude E5540, read from the U1 position on Compal board LA-A101P Rev 1.0. The raw binary is 8.00 MB and is meant for an 8 MB SPI flash. Its companion EC dump sits on the U2 chip. A programmer such as a CH341A or RT809 is used to write it after a failed update or a corrupted firmware region. Before flashing, back up the existing contents so the service tag and other board-specific data can be restored. Check that the printed board number and revision match.
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 @laptopbios21. Enginerys does not host this file.
How to open a .bin file
A raw, byte-for-byte image of a flash chip: the main BIOS / UEFI, the embedded-controller (EC) firmware, or both.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →