BIOS

NM-B501 rev 1.0 Lenovo ThinkPad T480 16mb+1MB+280kb.rar

BIOS / EC firmware for Lenovo T480 / 280kb · board NM-B501 · 6.9 MB · shared in 1 Telegram post.

TXTAbout NM-B501 rev 1.0 Lenovo ThinkPad T480 16mb+1MB+280kb BIOS / EC firmware

NM-B501 rev 1.0 Lenovo ThinkPad T480 16mb+1MB+280kb is a Lenovo T480 / 280kb BIOS / EC firmware dump for board NM-B501 (16 MB) — ME clean, EC firmware, password unlock. It is packed in a RAR archive of 6.9 MB, board revision 1.0, I5-8350U CPU. It was first posted on 5 Jun 2026 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-B501 revision 1.0.

For the same board you can also find board packs, a boardview and a schematic — see all NM-B501 files.

Type
BIOS & EC
Format
.rar · RAR archive
Size
6.9 MB
Brand
Lenovo
Board number
NM-B501
Model
T480, 280kb
Revision
1.0
Flash size
16 MB
CPU
I5-8350U
Notes
ME clean, EC firmware, password unlock
First posted
5 Jun 2026
Last posted
5 Jun 2026
Sources
1

Tags

MSGFrom the Telegram post

Model: Lenovo ThinkPad T480 Board: NM-B501 rev 1.0 CPU: intel core i5-8350U BIOS Size: main bios 16mb ec bios 280kb c type 1mb File : NM-B501 rev 1.0 Lenovo ThinkPad T480 16mb+1MB+280kb BIOS Editing Expert S BIOS WORLD Dell HP Lenovo Asus Acer Apple MSI Desktop BIOS Password Unlock SSD Detect Fix Corrupt BIOS Repair ME Clean Advanced Mods

J1Download NM-B501 BIOS / EC firmware from Telegram

R1How to download NM-B501 rev 1.0 Lenovo ThinkPad T480 16mb+1MB+280kb

  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 NM-B501 rev 1.0 Lenovo ThinkPad T480 16mb+1MB+280kb.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-B501. 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.