BIOS firmware archive for a Lenovo laptop on board NM-A681 revision 1.0. The NM- prefix follows the numbering used by LCFC, Lenovo's own design arm, and the board number is what identifies the correct image, since the file name does not state the laptop model. Extract the RAR and write the dump to the SPI flash with a programmer to repair a non-booting board. Confirm the NM-A681 marking and revision on the PCB, check the chip capacity, and save the existing contents beforehand.
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 | 25 Mar 2017 | Open file on RM Schematics |
| @biosarchive | 11 Dec 2017 | 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 →