BIOS

LENOVO_THINKPAD_X1_FX490_NM_B861_REV_1_0_2019_03_28_32MB_&_1MBWORKING.rar

BIOS / EC firmware for Lenovo FX490 / 1MBWORKING · board NM-B861 · 15.5 MB · shared in 1 Telegram post.

Download in Telegram Similar files

TXTAbout LENOVO THINKPAD X1 FX490 NM-B861 REV 1 0 2019 03 28 32MB & 1MBWORKING BIOS / EC firmware

LENOVO THINKPAD X1 FX490 NM-B861 REV 1 0 2019 03 28 32MB & 1MBWORKING is a Lenovo FX490 / 1MBWORKING BIOS / EC firmware dump for board NM-B861 (32 MB) — tested. It is packed in a RAR archive of 15.5 MB, board revision 1. It was first posted on 22 May 2023 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-B861 revision 1.

For the same board you can also find a schematic and a boardview — see all NM-B861 files.

Type
BIOS & EC
Format
.rar · RAR archive
Size
15.5 MB
Brand
Lenovo
Board number
NM-B861
Model
FX490, 1MBWORKING
Revision
1
Flash size
32 MB
Notes
tested
First posted
22 May 2023
Last posted
22 May 2023
Sources
1

Tags

NM-B861 BIOSNM-B861 BIOS binLenovo NM-B861Lenovo FX490 BIOSLenovo FX490 motherboardLenovo FX490 BIOS dumpBIOS bin fileSPI flash dumpLenovo laptop BIOS binBIOS free download

MSGFrom the Telegram post

LENOVO THINKPAD X1 FX490 NM-B861 REV 1.0 2019-03-28 32MB & 1MB WORKING BIOS 100% TESTED OK 100%

J1Download NM-B861 BIOS / EC firmware from Telegram

R1How to download LENOVO THINKPAD X1 FX490 NM-B861 REV 1 0 2019 03 28 32MB & 1MBWORKING

  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 LENOVO_THINKPAD_X1_FX490_NM_B861_REV_1_0_2019_03_28_32MB_&_1MBWORKING.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-B861. 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.