Firmware for an Acer Aspire 3 A315-53 mainboard, board code C5V01 with Compal number LA-E891P, in a 6.35 MB RAR archive. LA-xxxxP is the Compal pattern for laptop mainboards. The name gives no BIOS version or chip size, so check the image inside. Technicians write such a dump to the SPI flash with a programmer to recover a board with no display or a failed update. Back up the original chip, verify the LA number on the PCB and confirm the image fits 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.
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 →