BIOS

Z_INFO_SERVICE_LENOVO_IDEAPAD_3_15IAU7_Laptop_Type_82RK_JV473_JV573.RAR

BIOS / EC firmware for Lenovo 15IAU7 / 82RK / JV473 · board NM-E431 · 6.7 MB · shared in 1 Telegram post.

Download in Telegram Similar files

TXTAbout Z INFO SERVICE LENOVO IDEAPAD 3 15IAU7 Laptop Type 82RK JV473 JV573 BIOS / EC firmware

Z INFO SERVICE LENOVO IDEAPAD 3 15IAU7 Laptop Type 82RK JV473 JV573 is a Lenovo 15IAU7 / 82RK / JV473 BIOS / EC firmware dump for board NM-E431 (8 MB) — password unlock, tested. It is packed in a RAR archive of 6.7 MB, I5 CPU. It was first posted on 25 Dec 2025 and is available in 1 Telegram channel.

Write it with an SPI programmer such as CH341A, RT809H or XGecu T48 to revive a board after a failed BIOS update, fix a corrupted Intel ME region or remove a forgotten BIOS password. Read and save the original chip first, and check that your board is NM-E431.

Type
BIOS & EC
Format
.rar · RAR archive
Size
6.7 MB
Brand
Lenovo
Board number
NM-E431
Model
15IAU7, 82RK, JV473
Flash size
8 MB
CPU
I5
Notes
password unlock, tested
First posted
25 Dec 2025
Last posted
25 Dec 2025
Sources
1

Tags

NM-E431 BIOSNM-E431 BIOS binLenovo NM-E431Lenovo 15IAU7 BIOSLenovo 15IAU7 motherboardLenovo 15IAU7 BIOS dumpBIOS bin fileSPI flash dumpLenovo laptop BIOS binBIOS free download

MSGFrom the Telegram post

Z INFO SERVICE LENOVO IDEAPAD 3 15IAU7 Laptop - Type 82RK JV473-JV573 JS478-JS578-JS778 NM-E431 REV 1.0 I5-13TH GEN 8 MB 16 MB UNLOCKED CLEAN TESTED OK DONE BIOS 100% TESTED OK BIOS

J1Download NM-E431 BIOS / EC firmware from Telegram

R1How to download Z INFO SERVICE LENOVO IDEAPAD 3 15IAU7 Laptop Type 82RK JV473 JV573

  1. Press Download in Telegram. The post opens in the Telegram app, or on a t.me preview page — choose “View in Telegram”.
  2. You don’t need to join the channel. Tap the file Z_INFO_SERVICE_LENOVO_IDEAPAD_3_15IAU7_Laptop_Type_82RK_JV473_JV573.RAR to download it.
  3. Open it with 7-Zip (free) or WinRAR.

If a post was deleted, try another source above or search for NM-E431. Step-by-step help: downloading from Telegram.

Back up the original chip twice before writing this dump, and check that the board number and chip size match. See how to flash a BIOS chip.

.RARWhat is a .rar file and how to open it?

RAR archive. A compressed folder. It can hold a schematic, a boardview, a BIOS dump or all three.

Open with:

  • 7-Zip (free)
  • WinRAR

Tip: If the archive asks for a password, look for it in the Telegram post text.