BIOS

X280_Type_20KF,_20KE_Laptop_ThinkPad_Type_20KE_NM_B521_REV_2_0_TASTED.rar

BIOS / EC firmware for Lenovo X280 / 20KF / 20KE · board NM-B521 · 8.1 MB · shared in 1 Telegram post.

TXTAbout X280 Type 20KF, 20KE Laptop ThinkPad Type 20KE NM-B521 REV 2 0 TASTED BIOS / EC firmware

X280 Type 20KF, 20KE Laptop ThinkPad Type 20KE NM-B521 REV 2 0 TASTED is a Lenovo X280 / 20KF / 20KE BIOS / EC firmware dump for board NM-B521. It is packed in a RAR archive of 8.1 MB, board revision 2. It was first posted on 23 Dec 2024 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-B521 revision 2.

For the same board you can also find a schematic and a boardview — see all NM-B521 files.

Type
BIOS & EC
Format
.rar · RAR archive
Size
8.1 MB
Brand
Lenovo
Board number
NM-B521
Model
X280, 20KF, 20KE
Revision
2
First posted
23 Dec 2024
Last posted
23 Dec 2024
Sources
1

Tags

J1Download NM-B521 BIOS / EC firmware from Telegram

R1How to download X280 Type 20KF, 20KE Laptop ThinkPad Type 20KE NM-B521 REV 2 0 TASTED

  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 X280_Type_20KF,_20KE_Laptop_ThinkPad_Type_20KE_NM_B521_REV_2_0_TASTED.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-B521. 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.