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Lenovo CMX40 NM-A641 BIOS

BIOS NM-A641 Added: Dec 6, 2025 RAR · 9.9 MB

File details

TypeBIOS
BrandLenovo
Board numberNM-A641
PlatformCMX40
Board maker (ODM)Compal
DeviceLaptop
FormatRAR
Size9.9 MB
BIOS chip size8 MB
AddedDecember 6, 2025
Updated
Original file nameLENOVO_IdeaPad_Miix_700_Convertible_Tablet_CMX40_NM_A641_8MB_BIOS.rar

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

From the original post:
LENOVO _IdeaPad_Miix_700_Convertible_Tablet CMX40 NM-A641 8MB BIOS

BIOS dump for the Lenovo IdeaPad Miix 700 convertible tablet, board NM-A641 (platform CMX40, Compal ODM), supplied for an 8 MB SPI flash chip. The archive is a RAR file of about 9.9 MB. Technicians use a dump like this to reprogram the flash with a programmer after a corrupted BIOS or a failed update. Before flashing, confirm that the board number NM-A641 matches the one printed on your board, and save the original chip contents as a backup so you can restore them if something goes wrong.

The catalog also lists 6 schematics and 1 BIOS dump for board NM-A641.

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 CMX40 NM-A641. 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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