Firmware image for the ASUS X550LB notebook, marked as OK in the name and compressed into a 3.16 MB RAR archive. It is intended for reprogramming the motherboard SPI BIOS chip when the laptop fails to post, loops on power or has a corrupted BIOS. Unpack it and use an SPI programmer to write the image, always reading and backing up the original chip first so serial data and the original image are preserved. Compare the extracted file size with the chip capacity before flashing.
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 (3)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @biosarchive | 10 Mar 2018 | 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 |
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 →