BIOS dump for the Lenovo G50-45, linked to LCFC board NM-A281, provided as a 2.31 MB RAR archive. The name confirms only the model and that it is a chip dump, with no revision given. NM-xxxx is the LCFC numbering used on Lenovo consumer laptops. A dump like this is reflashed with a programmer such as a CH341A to revive a dead or looping board. Read and keep the existing contents first, confirm the board code on the PCB, and check that the dump size equals the chip capacity.
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 | 14 Sept 2020 | Open file on RM Schematics |
| @biositechyangiyer | 22 Sept 2020 | Open file on RM Schematics |
| @biositechyangiyer | 5 Oct 2020 | Open file on RM Schematics |
| @biosdumpcomputer | 26 May 2022 | Open file on RM Schematics |
| @biosdumpcomputer | 26 May 2022 | 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 →