Combined BIOS and EC firmware for the ASUS VivoBook 15 X505ZA, archived as a 4.33 MB RAR. The name lists no board number or revision, so compare the motherboard markings before relying on it. The BIOS image goes to the main SPI flash, while the embedded controller firmware handles power sequencing, battery charging and keyboard functions. Program each with a suitable SPI programmer, save the original contents of every chip before erasing, and verify the written data so a mismatch does not leave the laptop dead.
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 (9)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @biosarchive | 12 Jul 2020 | Open file on RM Schematics |
| @biositechyangiyer | 13 Jul 2020 | Open file on RM Schematics |
| @laptexlaptopbios | 13 Jul 2020 | Open file on RM Schematics |
| @one5technology | 21 Nov 2020 | Open file on RM Schematics |
| @pepeelectronica | 23 Apr 2022 | Open file on RM Schematics |
| @biosdumpcomputer | 26 May 2022 | Open file on RM Schematics |
| @skclappybios | 10 Apr 2024 | 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 →