Skip to content

Lenovo IdeaPad 320 EG721 NM-B452 BIOS (REV 1.0)

BIOS NM-B452 Added: Jul 28, 2022 RAR · 20 MB

File details

TypeBIOS
BrandLenovo
ModelIdeaPad 320
Board numberNM-B452
PlatformEG721
Board maker (ODM)Compal
Revision1.0
DeviceLaptop
FormatRAR
Size20 MB
AddedJuly 28, 2022
Updated
Original file nameLENOVO_IDEAPAD_320_15IKB_EG521_EG522_EZ511_EG721_NM_B452_REV_1_0.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 Lenovo IdeaPad 320 laptop, board number NM-B452, revision 1.0, platform EG721, built by Compal. The archive is about 19.5 MB in RAR format. A dump like this is used to reprogram the SPI flash chip with a programmer after a corrupted BIOS or a failed update. Before flashing, confirm that the board number and revision match your board, and back up the original chip contents so you can recover if the write goes wrong.

The catalog also lists 3 schematics, 2 boardview files, and 12 BIOS dumps for board NM-B452.

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 →

Browse more

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 IdeaPad 320 EG721 NM-B452. 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.

Report a dead link or request removal