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Lenovo L480 EL580 NM-B461 BIOS

BIOS NM-B461 Added: Feb 21, 2021 ZIP · 7.8 MB

File details

TypeBIOS
BrandLenovo
ModelL480
Board numberNM-B461
PlatformEL580
Board maker (ODM)Compal
Revision1.0
DeviceLaptop
FormatZIP
Size7.8 MB
Marksclean ME
AddedFebruary 21, 2021
Updated
Original file nameLenovo_L480_type_20LS,_20LT_EL480_EL580_NM_B461_REV_1_0_clear_me.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 L480 laptop, board number NM-B461 revision 1.0, platform EL580, built by Compal. The file has a cleaned Intel ME region, and the original file name references types 20LS and 20LT along with EL480 and EL580. Technicians use a BIOS 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 match your motherboard, and read out and save the original chip contents as a backup.

The catalog also lists 2 schematics, 1 boardview file, and 4 BIOS dumps for board NM-B461.

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 L480 EL580 NM-B461. 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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