Lenovo BIOS package for the LCFC NM-A362 board, for ACLU3 and ACLU4 project codes and the UMA integrated graphics version, which also includes firmware for the ITE IT8586E embedded controller. It comes in a 3.81 MB RAR. NM-prefixed numbers are used by LCFC, Lenovo's own ODM. The EC firmware matters when a board will not power on or charge correctly, as the IT8586E controls power sequencing and the keyboard. Back up the existing chips before flashing and confirm the UMA variant matches your board.
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 (7)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @biosarchive | 7 Nov 2020 | Open file on RM Schematics |
| @biositechyangiyer | 2 Dec 2020 | Open file on RM Schematics |
| @laptop_bios_schematic | 28 Dec 2020 | Open file on RM Schematics |
| @biositechyangiyer | 1 Feb 2021 | Open file on RM Schematics |
| @biosdumpcomputer | 26 May 2022 | Open file on RM Schematics |
| @biosdumpcomputer | 26 May 2022 | Open file on RM Schematics |
| @schematiclaptopramkushwaha | 14 Jul 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.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →