Lenovo IdeaPad S405 LA-9001P KB9012

BIOS .bin 128 KB Shared

EC firmware for the Lenovo IdeaPad S405 on Compal board LA-9001P, intended for the ENE KB9012 keyboard controller, as a 128 KB binary image. Technicians reflash this chip when the laptop will not power up, shows no charging LED or has keyboard faults, typically through the keyboard connector using a KB9012 programming adapter. The LA-xxxxP pattern identifies Compal as the board maker. Match the board number first and back up the existing EC contents.

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.

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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