Embedded controller firmware image for the Compal-made board LA-7731P, read from an SMSC MEC5055 controller. The file name gives no laptop brand, so identify the machine by the board number on the PCB. At 256 KB it covers the EC code, which handles power sequencing, battery charging and the keyboard, rather than the system BIOS. Reflashing a damaged EC with this dump can fix boards that do not power on. Back up the chip before writing and confirm the board revision matches.
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 @bioshub. Enginerys does not host this file.
All sources (2)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @bioshub | 22 Jan 2021 | Open file on RM Schematics |
| @ShareMan_Electronic_Files | 29 Apr 2025 | Open file on RM Schematics |
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 →