System BIOS dump for the Lenovo IdeaPad 300-15IBR, supplied as a 3.66 MB RAR archive. The name also carries the token BMWC1, which is probably a board or project identifier, though no board number is given outright. Technicians write such an image to the SPI flash with an external programmer to recover from a bad update, no-POST faults or corrupted settings. Back up the original chip before writing, check the board inside the laptop against the dump, and confirm the image size fits the installed flash chip before programming.
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 (2)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @biosarchive | 21 Jan 2018 | Open file on RM Schematics |
| @abgm_manutencao_bios | 8 Aug 2019 | 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 →