THINKPAD_T450_LENOVO_BT462_NM_A581_REV_3_0_2015_12_24_WORKING_BIOS.rar

TXTAbout THINKPAD T450 LENOVO BT462 NM-A581 REV 3 0 2015 12 24 WORKING BIOS BIOS / EC firmware

THINKPAD T450 LENOVO BT462 NM-A581 REV 3 0 2015 12 24 WORKING BIOS is a Lenovo T450 / BT462 BIOS / EC firmware dump for board NM-A581 — tested. It is packed in a RAR archive of 20.5 MB, board revision 3. It was first posted on 13 Jul 2022 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-A581 revision 3.

For the same board you can also find a boardview and a schematic — see all NM-A581 files.

MSGFrom the Telegram post

TESTED OK 100%

J1Download NM-A581 BIOS / EC firmware from Telegram

R1How to download THINKPAD T450 LENOVO BT462 NM-A581 REV 3 0 2015 12 24 WORKING BIOS

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_T450_LENOVO_BT462_NM_A581_REV_3_0_2015_12_24_WORKING_BIOS.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-A581. 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?