Skip to content

Lenovo ThinkPad X260 NM-A531 BIOS (REV 3.0, clean ME)

BIOS NM-A531 Added: Apr 24, 2026 ZIP · 5.2 MB

File details

TypeBIOS
BrandLenovo
ModelThinkPad X260
Board numberNM-A531
Board maker (ODM)Compal
Revision3.0
DeviceLaptop
FormatZIP
Size5.2 MB
Marksclean ME
AddedApril 24, 2026
Updated
Original file nameTHINKPAD X260 NM-A531 REV 3.0 clear me test 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 ThinkPad X260 laptop, board number NM-A531, PCB revision 3.0, from Compal. The dump has a cleaned Intel ME region and is supplied as a ZIP archive of about 5.2 MB. Technicians use a dump like this to reprogram the SPI flash chip with a programmer after a corrupted BIOS or a failed update. Before flashing, confirm that the board number and revision on your motherboard match NM-A531 and 3.0, and save a backup of the original chip contents.

For board NM-A531 the catalog also has 3 schematics, 2 boardview files, and 14 BIOS dumps.

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 →

Browse more

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 ThinkPad X260 NM-A531. 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.

Report a dead link or request removal