Firmware archive for the Acer Aspire V5-531 notebook, with no board number, revision or version stated in the name. Inside the 2.70 MB RAR there should be an image for the main SPI flash, possibly with related files. Before programming, find the mainboard number on the PCB, since Acer sourced boards from different ODMs. Match the image size with the chip capacity, save the existing chip contents, then write with a programmer such as a CH341A or RT809H.
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 @biosbigarchives. 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 →