BIOS firmware for the ASUS X550LC at mainboard revision 2.0, packed as a 3.14 MB RAR archive. The revision matters because ASUS boards of the same model can differ between revisions. The archive likely contains a full SPI flash image that technicians write with a CH341A or RT809 programmer when the laptop will not boot. Confirm the board name and revision on the PCB silkscreen, read and save the original chip contents, and check that the extracted image size matches the chip 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 (5)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @biosarchive | 26 Jan 2017 | Open file on RM Schematics |
| @abgm_manutencao_bios | 7 Aug 2019 | Open file on RM Schematics |
| @one5technology | 10 Nov 2020 | Open file on RM Schematics |
| @generalbios | 29 Sept 2023 | Open file on RM Schematics |
| @generalbios | 26 Oct 2023 | 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 →