BIOS archive for the Lenovo ThinkPad L450, motherboard NM-A351, delivered as a 3.61 MB ZIP. No revision, version or chip details are given in the name. NM-series numbers follow the LCFC (Lenovo) ODM scheme. A technician would use these contents to reflash a board that fails to start because of corrupted firmware, typically with a CH341A or similar programmer on the SPI chip. Back up the existing chip first, check the board revision on the PCB, and confirm that each image size matches the target flash part.
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 (9)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @biosarchive | 5 Jan 2021 | Open file on RM Schematics |
| @laptexlaptopbios | 7 Jan 2021 | Open file on RM Schematics |
| @biositechyangiyer | 1 Feb 2021 | Open file on RM Schematics |
| @BiosSchematicWorld | 4 Feb 2022 | Open file on RM Schematics |
| @pepeelectronica | 24 Apr 2022 | Open file on RM Schematics |
| @biosdumpcomputer | 26 May 2022 | Open file on RM Schematics |
| @skclappybios | 10 Apr 2024 | Open file on RM Schematics |
| @schematiclaptopramkushwaha | 13 Jul 2025 | Open file on RM Schematics |
| @schematics_bios | 24 Jul 2026 | Open file on RM Schematics |
How to open a .zip file
Compressed archive that every operating system opens without extra software.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →