BIOS image for the Compal LA-4571P board revision 4.0, carrying the platform code KTKAA and the date 2008-12-18. Compal LA-series numbers identify the ODM design rather than the laptop brand, so check the PCB marking, not only the model sticker. Use it to reprogram the flash chip with an external programmer when the notebook shows no display or loops on power. Read and keep the original contents first. The image must match the chip capacity, and the revision should agree with the board in hand.
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.
How to open a .zip file
Compressed archive that every operating system opens without extra software.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →