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Lenovo B50-70 ZIWB3 LA-B092P BIOS (REV 1.0, 8 MB)

BIOS LA-B092P Added: Mar 31, 2021 RAR · 3.3 MB

File details

TypeBIOS
BrandLenovo
ModelB50-70
Board numberLA-B092P
PlatformZIWB3
Board maker (ODM)Compal
Revision1.0
DeviceLaptop
FormatRAR
Size3.3 MB
BIOS chip size8 MB
Marksclean ME
AddedMarch 31, 2021
Updated
Original file nameLenovo B50-70 ZIWB3 LA-B092P REV1.0 U1 25B64BSIG Clear me.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

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 Lenovo B50-70 laptop, Compal board LA-B092P revision 1.0, platform ZIWB3. The image is sized for an 8 MB SPI flash chip and has the Intel ME region cleaned. Technicians use a dump like this to reprogram the flash with an external programmer after a corrupted BIOS or a failed update. Before writing anything, confirm that the board number and revision printed on your motherboard match LA-B092P REV1.0, and save a full backup of the original chip contents so you can recover if the write goes wrong.

The catalog also lists 2 schematics and 17 BIOS dumps for board LA-B092P.

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: Lenovo B50-70 ZIWB3 LA-B092P. 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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