Modified firmware for the ASUS X455LD, intended for board revisions 2.1 and 2.2, with the soldered RAM turned off so only the SO-DIMM is used. Repair technicians use it when onboard memory is faulty and causes no display or boot loops. The 1.78 MB RAR archive holds the image for direct SPI programming with a tool such as a CH341A. Match the revision printed on the PCB, make a full backup of the original chip, and confirm the image size matches the flash 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 @biosarchive. Enginerys does not host this file.
All sources (17)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @biosarchive | 26 Sept 2017 | Open file on RM Schematics |
| @IT_SERVICE_WORLD | 6 Nov 2019 | Open file on RM Schematics |
| @laptexlaptopbios | 4 Feb 2022 | Open file on RM Schematics |
| @pepeelectronica | 21 Apr 2022 | Open file on RM Schematics |
| @pepeelectronica | 23 Apr 2022 | Open file on RM Schematics |
| @pepeelectronica | 24 Apr 2022 | Open file on RM Schematics |
| @Satale_bios_esquemas_Laptop | 12 Nov 2022 | Open file on RM Schematics |
| @skclappybios | 25 Nov 2022 | Open file on RM Schematics |
| @skclappybios | 11 Jul 2023 | Open file on RM Schematics |
| @Laptopbiossolutions | 19 Sept 2023 | Open file on RM Schematics |
| @skclappybios | 8 Jun 2025 | Open file on RM Schematics |
| @schematics_bios | 24 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 24 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 25 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 27 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 1 Aug 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 →