LENOVO_THINKPAD_T490_T590_FT490_FT492_FT590_FP531_NM_B901_REV_1.rar

TXTAbout LENOVO THINKPAD T490 T590 FT490 FT492 FT590 FP531 NM-B901 REV 1 BIOS / EC firmware

LENOVO THINKPAD T490 T590 FT490 FT492 FT590 FP531 NM-B901 REV 1 is a Lenovo T490 / T590 / FT490 BIOS / EC firmware dump for board NM-B901 for the MEC1663 SPI flash chip — tested. It is packed in a RAR archive of 29.9 MB, board revision 1, I7-8565U CPU, N17S-G2 graphics. It was first posted on 6 May 2023 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-B901 revision 1.

For the same board you can also find a boardview, a schematic and board packs — see all NM-B901 files.

MSGFrom the Telegram post

LENOVO THINKPAD T490 T590 FT490 FT492 FT590 FP531 NM-B901 REV 1.0 DREJP i7-8565U N17S-G2-A1 MEC1663 WORKING BIOS 100% TESTED OK 100%

J1Download NM-B901 BIOS / EC firmware from Telegram

R1How to download LENOVO THINKPAD T490 T590 FT490 FT492 FT590 FP531 NM-B901 REV 1

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_THINKPAD_T490_T590_FT490_FT492_FT590_FP531_NM_B901_REV_1.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-B901. 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?