A BIOS / firmware dump for Lenovo hardware (board NM-C421). Shared as “Lenovo e15 NM_C421_REV_1 with password.rar” — a .rar file, 6.94 MB.
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 @dtechbios. 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 | |
|---|---|---|
| @dtechbios | 31 Aug 2025 | Open file on RM Schematics |
| @zinfoservicebios | 31 Aug 2025 | 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.
7-ZipWinRARThe Unarchiver (macOS)
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →