1 MB BIOS image for the Dell Studio 1558, regulatory model PP39L, labelled as a fully working EPROM read. The size matches an 8 Mbit SPI flash chip, which a technician programs with a CH341A or similar tool when a board will not post after corruption or a failed update. Confirm the chip capacity on the board matches the file. Read and keep the original contents before erasing, since the service tag and other data are stored there.
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 →