BIOS dump for the Acer Aspire E1-531 on the LA-7912P motherboard, revision 2.0, marked ok, which suggests a tested and working image. LA-numbered boards are designed by Compal, the ODM behind many Acer laptops. The file is a 1.47 MB RAR archive. Check that the PCB shows LA-7912P Rev 2.0 before flashing, then write the image to the SPI chip with an external programmer. Read and save the original chip contents first, and make sure the image size matches the chip capacity.
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 @jdbiosworld. Enginerys does not host this file.
All sources (8)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @jdbiosworld | 23 May 2020 | Open file on RM Schematics |
| @one5technology | 10 Nov 2020 | Open file on RM Schematics |
| @bios_laptop | 15 Jun 2022 | Open file on RM Schematics |
| @laptopbios21 | 5 May 2023 | Open file on RM Schematics |
| @Satale_bios_esquemas_Laptop | 27 May 2023 | Open file on RM Schematics |
| @generalbios | 22 Sept 2023 | Open file on RM Schematics |
| @generalbios | 25 Sept 2023 | Open file on RM Schematics |
| @generalbios | 15 Dec 2024 | 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 →