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ET481 NM-B471 BIOS (REV 1.0)

BIOS NM-B471 Added: Mar 27, 2022 RAR · 5.8 MB

File details

TypeBIOS
Board numberNM-B471
PlatformET481
Board maker (ODM)Compal
Revision1.0
DeviceLaptop
FormatRAR
Size5.8 MB
AddedMarch 27, 2022
Updated
Original file nameBIOS T480S ET481 NM-B471 REV 1.0 2017-10-30.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

BIOS dump for a laptop built on the Compal NM-B471 board, platform ET481, PCB revision 1.0. The original file is named BIOS T480S ET481 NM-B471 REV 1.0 2017-10-30.rar, about 5.8 MB in RAR format. 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 board, and back up the original chip contents first.

The catalog also lists 2 schematics, 1 boardview file, and 4 BIOS dumps for board NM-B471.

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: ET481 NM-B471. 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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