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BT460 NM-A421 BIOS (REV 3.0)

BIOS NM-A421 Added: Oct 14, 2023 RAR · 15 MB

File details

TypeBIOS
Board numberNM-A421
PlatformBT460
Board maker (ODM)Compal
Revision3.0
DeviceLaptop
FormatRAR
Size15 MB
AddedOctober 14, 2023
Updated
Original file nameBT460 NM-A421 REV 3.0 2015-11-26 OKOK.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:
BT460 NM-A421 REV 3.0 2015-11-26

BIOS dump for a laptop built on the Compal NM-A421 board (platform BT460), PCB revision 3.0, supplied as a RAR archive of about 15.5 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 NM-A421 and revision 3.0 match your motherboard exactly, and read out and save the original chip contents as a backup first. The original file name is BT460 NM-A421 REV 3.0 2015-11-26 OKOK.rar.

For board NM-A421 the catalog also has 3 schematics and 7 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 →

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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: BT460 NM-A421. 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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