BIOS and EC firmware for the ASUS X455LD notebook, applicable to board revisions 2.1 and 2.3. With the EC image included, the pack helps on faults such as no power, dead keyboard or battery not charging, not just a corrupted BIOS. The 6.58 MB RAR is meant for flashing with a hardware programmer. Before writing, compare the revision printed on the PCB with the two supported versions, read and keep the original chip contents, and check that each image matches the size of its target chip.
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 | 18 Jan 2021 | Open file on RM Schematics |
| @laptexlaptopbios | 21 Jan 2021 | Open file on RM Schematics |
| @biositechyangiyer | 1 Feb 2021 | Open file on RM Schematics |
| @pepeelectronica | 23 Apr 2022 | Open file on RM Schematics |
| @biosdumpcomputer | 26 May 2022 | Open file on RM Schematics |
| @bios_main_ec_kbc | 14 Sept 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 →