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Lenovo X1 NM-C661 BIOS

BIOS NM-C661 Added: Oct 19, 2021 ZIP · 14 MB

File details

TypeBIOS
BrandLenovo
ModelX1
Board numberNM-C661
Board maker (ODM)Compal
DeviceLaptop
FormatZIP
Size14 MB
Markstested by uploader, includes EC firmware
AddedOctober 19, 2021
Updated
Original file nameLenovo X1 BIOS nm-c661 1.0 BIOS & EC TESTED OK .zip

Where to get the file

Opens the matching file on RM Schematics, or its source details if it is not catalogued there yet.

Alternative links

No other copies are known yet.

AwesomeHeader does not store this file. It was published in a public Telegram channel; the links above lead to the original post and its copies.

Description

BIOS dump for the Lenovo X1 laptop, board number NM-C661, made by Compal and supplied as a ZIP of about 13.8 MB. The uploader marked it as tested, and it includes EC/KBC firmware alongside the BIOS image. Technicians use a BIOS dump like this to reprogram the SPI flash chip with a programmer after corruption or a failed update, and the EC/KBC firmware can matter when the embedded controller is part of the fault. Before flashing, confirm the board number and revision match your machine and back up the original chip contents.

The catalog also lists 2 schematics and 4 BIOS dumps for board NM-C661.

Description generated from the catalog data. ·

How to open it

A BIOS dump is written to the SPI flash chip with a programmer such as the CH341A and a SOIC8 clip. Read and save the original chip contents twice before writing.

Guide: Flash a Laptop BIOS with a CH341A Programmer →

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Questions about this file

How do I flash this BIOS dump?

Write it to the SPI flash chip with a programmer such as the CH341A and a SOIC8 clip. Read and keep the original contents first, and check that the chip size matches the dump.

Will this BIOS work on my board?

Only if the board number and revision match: Lenovo X1 NM-C661. Dumps from a different board or revision can leave the board dead.

What does “clean ME” mean?

The Intel ME region in the dump has been reset, so it can be used on another board of the same model. Keep your original dump and transfer serial numbers if needed.

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