Firmware dump for the Lenovo IdeaPad S400 on Compal board LA-8952P, compressed as a 3.83 MB RAR. The LA- prefix is Compal's motherboard numbering, meaning Compal manufactured this board for Lenovo. Extract the image and program it into the SPI BIOS chip with a CH341A or similar to fix bricked boards, no-display faults or failed updates. Verify LA-8952P is printed on the PCB, read and save the current chip contents before writing, and ensure the image size matches the flash 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 @bios_laptop. 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 | |
|---|---|---|
| @bios_laptop | 15 Jun 2022 | Open file on RM Schematics |
| @Satale_bios_esquemas_Laptop | 27 May 2023 | Open file on RM Schematics |
| @ComputerBIOSBinFile | 21 Sept 2025 | 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 →