Firmware archive for the Acer Aspire E1-531, configuration B962G50Maks, marked as the version without discrete graphics. No board number is listed, so identify the mainboard from its PCB code, because versions with and without a GPU often need different images. The 2.16 MB RAR is used for SPI flash recovery with an external programmer. Back up the original BIOS chip before writing and check that the extracted image 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 @Laptopdesktopbios. 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 →