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HP ProBook 4420S BIOS

BIOS Added: Jan 22, 2023 RAR · 2 MB

File details

TypeBIOS
BrandHP
ModelProBook 4420S
RevisionE
DeviceLaptop
FormatRAR
Size2 MB
Markstested by uploader
AddedJanuary 22, 2023
Updated
Original file nameHP_probook_4420s_DASX6MB16E0_Rev_E_PN_599523_001_WORKING_BIOS_.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:
HP_probook_4420s_DASX6MB16E0_Rev_E_PN_599523_001_WORKING BIOS

BIOS dump for the HP ProBook 4420S laptop, revision E, packed as a 2.0 MB RAR archive. The uploader marked it as tested, though that is their own claim and has not been verified here. The file name also carries the board reference DASX6MB16E0 and part number 599523-001, which you can compare against the label on your motherboard. A BIOS dump like this is used to reprogram the SPI flash chip with a programmer after a corrupted BIOS or a failed update.

For the HP ProBook 4420S the catalog also has 1 schematic.

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 ProBook 4420S. 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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