Acer BIOS for the N18Q5 model code on Quanta board DA0ZAKMB6E0, labeled as tested and working, supplied as a RAR archive. The DA0...MB6 code is the Quanta numbering pattern, with the final characters reflecting the board revision, so check the printed code matches exactly. After extracting, confirm the image size equals the SPI chip capacity, read and store the original chip contents, then program it with a CH341A or similar tool. Clear CMOS after flashing if the system fails to post.
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 .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 →