BIOS package for the Acer Aspire ES1-411 on Quanta board DA0Z8AMB4E0, revision E, with 8 MB and 4 MB images inside the ZIP. Two sizes usually mean the firmware is split across two SPI chips or prepared for different flash capacities, so read the chip markings on your board first. Back up the existing contents with a programmer before writing anything, and make sure each image size matches the target chip. Confirm the DA0 code and revision on the PCB, since a dump from another board can leave the laptop unbootable.
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 @biosarchive. Enginerys does not host this file.
How to open a .zip file
Compressed archive that every operating system opens without extra software.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →