KB9012 LA-B511P Aspire ES1-511

BIOS .bin 128 KB Shared

Embedded controller firmware for the Acer Aspire ES1-511 on a Compal LA-B511P mainboard, made for the ENE KB9012. Size is 128 KB, the full internal flash of that chip. Reflashing the EC fixes many no-power, no-charge and unresponsive keyboard faults on these entry-level Acer notebooks. Compal designs the LA-series boards for several brands, so the number on the PCB is what matters, not just the model sticker. Use a KB9012 programmer, save the factory code first, and verify the write afterwards.

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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