Second copy, marked (1), of the 2.00 MB BIOS image for the Acer 4738 Intel labelled for B. The size corresponds to a 16 Mbit SPI flash chip on the mainboard. Compare it against the first copy before deciding which to program, since duplicates sometimes differ. Programming is done with an external flasher such as a CH341A with a test clip. Keep a backup of the existing chip contents, and verify the board number and revision on the PCB before relying on this dump.
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 @ComputerBIOSBinFile. 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 →