Archive with BIOS and embedded controller firmware for the ASUS X1404ZA on board revision 3.0, labelled OLD, which suggests an earlier firmware version than other dumps for this board. Packed as an 8.71 MB RAR, it should contain separate images for the system BIOS chip and the EC. EC firmware controls power sequencing, charging, keyboard and fans, so a corrupted EC can cause no-power faults. Match the revision on the PCB, check each image size against its chip, and back up both chips before writing.
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 @pkbiosbdv. 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 | |
|---|---|---|
| @pkbiosbdv | 26 Jan 2026 | Open file on RM Schematics |
| @schematiclaptopramkushwaha | 15 Sept 2026 | 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 →