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Lenovo R720-15IKBM DY520 NM-B391 BIOS (REV 1.0)

BIOS NM-B391 Added: Apr 26, 2023 RAR · 6.7 MB

File details

TypeBIOS
BrandLenovo
ModelR720-15IKBM
Board numberNM-B391
PlatformDY520
Board maker (ODM)Compal
Revision1.0
DeviceLaptop
FormatRAR
Size6.7 MB
Markstested by uploader
AddedApril 26, 2023
Updated
Original file nameLENOVO_R720_15IKBM_DY520_NM_B391_REV_1_0_2017_04_14_i7_7700_1060.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:
LENOVO R720-15IKBM DY520 NM-B391 REV 1.0 2017-04-14 i7-7700 1060 6G WORKING BIOS 100%

BIOS dump for the Lenovo R720-15IKBM laptop, Compal-built board NM-B391 (platform DY520), revision 1.0. The file is a 6.7 MB RAR archive and is marked as tested by the uploader. Technicians use a BIOS dump like this to reprogram the SPI flash chip with a programmer after corruption or a failed update. Before writing anything, confirm that the board number and revision on your motherboard match NM-B391 and 1.0, and read out and save the original chip contents as a backup.

The catalog also lists 1 schematic, 1 boardview file, and 5 BIOS dumps for board NM-B391.

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 R720-15IKBM DY520 NM-B391. 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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