A 4 MB BIOS dump marked SB for the Dell Latitude E5520 on the board coded 10ELT15F001-A, revision A01. On this platform the BIOS is split, and a separate EC file exists for the second chip. The SB image is meant for the main system flash, matching a 32 Mbit SPI chip. Confirm the board code and revision, identify the correct chip, and read its contents before writing. Mixing up the SB and EC images will leave the board dead.
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 .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 →