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Sony Z40BR MBX-253 BIOS

BIOS MBX-253 Added: Jan 21, 2019 RAR · 1 MB

File details

TypeBIOS
BrandSony
ModelZ40BR
Board numberMBX-253
DeviceLaptop
FormatRAR
Size1 MB
AddedJanuary 21, 2019
Updated
Original file nameSONY_MBX-253_Z40BR 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

BIOS dump for the Sony Z40BR laptop, board number MBX-253, delivered as a RAR archive of about 1.0 MB under the original file name SONY_MBX-253_Z40BR BIOS.rar. Technicians use a dump like this to reprogram the SPI flash chip with a programmer when the BIOS is corrupted or a firmware update has failed. Before writing anything, read and save the original chip contents, and confirm that the board number and revision on your motherboard match the file's board number, MBX-253.

The catalog also lists 1 BIOS dump for board MBX-253.

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: Sony Z40BR MBX-253. 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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