Raw 8 MB BIOS image for the Acer Swift 3 SF315-41, with BK5EA in the name, likely a board or project code that the file does not explain. Supplied as a plain BIN file, it can be loaded directly into programmer software such as the tools bundled with CH341A or similar devices and written to the SPI flash chip. The image size means it fits an 8 MB (64 Mbit) chip, so confirm the marking on your chip. Back up the original contents before erasing, to keep serial and licence data.
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 @bioshub. Enginerys does not host this file.
How to open a .bin file
A raw, byte-for-byte image of a flash chip: the main BIOS / UEFI, the embedded-controller (EC) firmware, or both.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →