THINKPAD P15v TYPE 21A9 21AA NM-D552 U2001 U4402 32MB.rar

TXTAbout THINKPAD P15v TYPE 21A9 21AA NM-D552 U2001 U4402 32MB BIOS / EC firmware

THINKPAD P15v TYPE 21A9 21AA NM-D552 U2001 U4402 32MB is a Lenovo P15v / 21A9 / 21AA BIOS / EC firmware dump for board NM-D552 (32 MB). It is packed in a RAR archive of 27.5 MB. It was first posted on 12 Jul 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-D552.

For the same board you can also find a schematic — see all NM-D552 files.

J1Download NM-D552 BIOS / EC firmware from Telegram

R1How to download THINKPAD P15v TYPE 21A9 21AA NM-D552 U2001 U4402 32MB

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 THINKPAD P15v TYPE 21A9 21AA NM-D552 U2001 U4402 32MB.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-D552. 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?