BIOS and EC firmware pack for the ASUS X1404ZA mainboard revision 3.0, marked OK. The RAR archive is unusually small at 50.4 KB, so it may contain only part of the firmware, such as the EC image, or a highly compressed dump; inspect the contents before use. EC firmware governs power-on sequencing, battery charging and keyboard handling. Confirm the revision on the board, compare every image size with the target chip, and dump the existing chip with a programmer before overwriting anything.
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 →