ASUS VivoBook 15 X540NA firmware package holding both BIOS and EC images, compressed as RAR. The X540NA is an entry-level Intel model, and having the embedded controller file alongside the system BIOS helps fix boards with no power, charging faults or keyboard issues. Images are written to the SPI flash with an external programmer. Read and save the original contents first, since they include serial and MAC data, and check that each image size matches its chip before writing to avoid a failed restore.
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 (6)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @biosarchive | 9 Jan 2022 | Open file on RM Schematics |
| @pepeelectronica | 23 Apr 2022 | Open file on RM Schematics |
| @dr_bios_solution_chat | 15 Dec 2022 | Open file on RM Schematics |
| @generalbios | 8 Oct 2023 | Open file on RM Schematics |
| @schematics_bios | 24 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 1 Aug 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 →