BIOS firmware for a Compal A4DBH platform motherboard numbered LA-B731P, in a 5.88 MB RAR. The name does not state the laptop brand or model, so the LA-B731P code printed on the PCB is the main reference; Compal uses the LA-xxxxP format across boards it builds for several brands. A technician writes this image to the SPI flash with an external programmer to recover a board with corrupted firmware. Save the original chip contents first and verify 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 @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 | 20 Sept 2020 | Open file on RM Schematics |
| @biositechyangiyer | 5 Oct 2020 | Open file on RM Schematics |
| @biosdumpcomputer | 26 May 2022 | 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 →