cossio hs45a hs55a nm d461

BIOS .bin 8.00 MB Shared

BIOS dump for a Lenovo board built by LCFC with the number NM-D461, which the name associates with the HS45A and HS55A platforms and the word cossio. The raw .bin image is 8 MB, so it is meant for an 8 MB (64 Mbit) SPI flash chip. LCFC is the Lenovo-owned ODM that uses the NM-xxxx numbering. Before writing it with a programmer such as a CH341A, read and save the original chip contents, verify the chip capacity matches, and check that the board number on the PCB is NM-D461.

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 @dr_bios_solution_chat. 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.

CH341A + NeoProgrammer / AsProgrammerflashromRT809F / RT809HTL866II / T48UEFITool (to inspect)HxD (hex editor)

More about .bin files

Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →

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