BIOS

Lenovo_Thikpad_E480_EE480_EE580_NM_B421_REV_1_0_2017_10_30_TESTED.rar

BIOS / EC firmware for Lenovo E480 / EE480 / EE580 · board NM-B421 · 4.8 MB · shared in 2 Telegram posts.

Download in Telegram Similar files

TXTAbout Lenovo Thikpad E480 EE480 EE580 NM-B421 REV 1 0 2017 10 30 TESTED BIOS / EC firmware

Lenovo Thikpad E480 EE480 EE580 NM-B421 REV 1 0 2017 10 30 TESTED is a Lenovo E480 / EE480 / EE580 BIOS / EC firmware dump for board NM-B421 — tested. It is packed in a RAR archive of 4.8 MB, board revision 1. It was first posted on 26 Sept 2023 and is available in 2 Telegram channels.

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-B421 revision 1.

For the same board you can also find a boardview and a schematic — see all NM-B421 files.

Type
BIOS & EC
Format
.rar · RAR archive
Size
4.8 MB
Brand
Lenovo
Board number
NM-B421
Model
E480, EE480, EE580
Revision
1
Notes
tested
First posted
26 Sept 2023
Last posted
4 Oct 2023
Sources
2

Tags

NM-B421 BIOSNM-B421 BIOS binLenovo NM-B421Lenovo E480 BIOSLenovo E480 motherboardLenovo E480 BIOS dumpBIOS bin fileSPI flash dumpLenovo laptop BIOS binBIOS free download

J1Download NM-B421 BIOS / EC firmware from Telegram

R1How to download Lenovo Thikpad E480 EE480 EE580 NM-B421 REV 1 0 2017 10 30 TESTED

  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_Thikpad_E480_EE480_EE580_NM_B421_REV_1_0_2017_10_30_TESTED.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-B421. 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.