Firmware dump for the Acer Aspire E1-531 on Compal board LA-7912P, packed as RAR. The name marks it as a PCH image with the ME region cleared, a state meant to avoid Management Engine errors or slow boot after flashing. Compal uses the LA-xxxxP format for its board numbers. Write the image to the SPI flash with a hardware programmer such as a CH341A, after reading and saving the original contents. Check the board number on the PCB, and ensure the image size matches the flash chip before writing.
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.
All sources (3)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @biosarchive | 4 Sept 2017 | Open file on RM Schematics |
| @abgm_manutencao_bios | 9 Jul 2019 | Open file on RM Schematics |
| @one5technology | 10 Nov 2020 | Open file on RM Schematics |
How to open a .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →