BIOS dump for the Acer Aspire E5-421 built on the DA0ZQNMB6D0 motherboard, revision D. The DA0 prefix follows Quanta board numbering, so the board was made by Quanta even though it carries the Acer brand. The file is a 2.77 MB RAR archive. Before flashing, confirm that the PCB silkscreen shows DA0ZQNMB6D0 Rev D, then write the image to the SPI flash with an external programmer. Read and keep the original chip contents first, and make sure the image size matches 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 @bios_laptop. Enginerys does not host this file.
All sources (2)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @bios_laptop | 15 Jun 2022 | Open file on RM Schematics |
| @Satale_bios_esquemas_Laptop | 27 May 2023 | Open file on RM Schematics |
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 →