BIOS firmware for a board labelled RoundRock MLK MB, number 15203-1, which fits Wistron's numbering scheme, so Wistron is the ODM. RoundRock suggests a Dell-related project, but the name does not state the laptop model. BF is not defined in the name. The 8.82 MB RAR archive is meant for SPI flash recovery with a hardware programmer. Back up the existing chip before writing and make sure the image size matches the chip capacity and the board number matches the PCB.
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 | 17 Oct 2023 | Open file on RM Schematics |
| @generalbios | 20 Oct 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 →