Embedded controller firmware for the Lenovo Z50-70 on board NM-A271, packed as a 39.9 KB ZIP archive. The name identifies the EC chip as an ITE IT8685E. The NM-xxxx board numbering is used by LCFC, the ODM that builds many Lenovo laptops. A corrupted EC image can cause no-power, charging or keyboard faults. Technicians reflash it with a suitable programmer or a tool that supports ITE chips. Back up the existing EC contents first, and confirm that both the board number and the EC chip marking match.
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 @sbiosworldchannel. Enginerys does not host this file.
All sources (4)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @sbiosworldchannel | 21 Feb 2026 | Open file on RM Schematics |
| @skclappybios | 21 Feb 2026 | Open file on RM Schematics |
| @sboisworld | 21 Feb 2026 | Open file on RM Schematics |
| @dtechbios | 21 Feb 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 →