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HP 6540B HM57 LA-4892P BIOS

BIOS LA-4892P Added: Feb 2, 2021 RAR · 1.9 MB

File details

TypeBIOS
BrandHP
Model6540B
Board numberLA-4892P
PlatformHM57
Board maker (ODM)Compal
DeviceLaptop
FormatRAR
Size1.9 MB
BIOS chip size4 MB
AddedFebruary 2, 2021
Updated
Original file nameHP 6540b COMPAL LA-4892P HM57 25L3205D.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 the HP 6540b laptop, Compal board LA-4892P on the HM57 platform, supplied for a 4 MB flash chip. The archive is a RAR file of about 1.9 MB, named HP 6540b COMPAL LA-4892P HM57 25L3205D.rar. Technicians use a dump like this to reprogram the SPI chip with a programmer after a corrupted BIOS or a failed update. Before writing anything, confirm that the board number LA-4892P matches the one printed on your motherboard, and save the original chip contents as a backup so you can recover if the new image does not work.

For board LA-4892P the catalog also has 1 schematic and 1 BIOS dump.

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: HP 6540B HM57 LA-4892P. 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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