Acer Aspire A315-55G BIOS image, 16 MB, with ZAW noted in the name and an OBRAM disable modification. Disabling onboard RAM is a common workaround when soldered memory is damaged, letting the notebook boot from an installed module. The name does not give a board number or revision, so compare it with your PCB marking and the original firmware. A 16 MB image fits a 128 Mbit SPI chip; read and back up the existing chip with a programmer before flashing and check 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 @ITHINKHS. 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 →