BIOS dump for a Dell Chromebook built on Quanta board DA0ZM7MBAC1. The DA0 prefix and MB marker identify the Quanta numbering scheme, and the C1 suffix normally indicates the board revision. Chromebook firmware lives on an SPI chip and contains coreboot along with write-protected regions, so restoring it typically requires an external programmer. Read and keep the original chip contents before writing, since they include unit-specific data, and confirm the board number on the PCB plus 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 @biosarchive. 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 | |
|---|---|---|
| @biosarchive | 9 Jan 2024 | Open file on RM Schematics |
| @generalbios | 4 Nov 2024 | 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 →