Lenovo T490 , NM-B901 rev.1.0 20N3-SA5500.rar

TXTAbout Lenovo T490 , NM-B901 rev.1.0 20N3-SA5500 BIOS / EC firmware

Lenovo T490 , NM-B901 rev.1.0 20N3-SA5500 is a Lenovo T490 / rev.1.0 / 20N3-SA5500 BIOS / EC firmware dump for board NM-B901. It is packed in a RAR archive of 10.2 MB, board revision 1.0. It was first posted on 24 Apr 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-B901 revision 1.0.

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

J1Download NM-B901 BIOS / EC firmware from Telegram

R1How to download Lenovo T490 , NM-B901 rev.1.0 20N3-SA5500

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 T490 , NM-B901 rev.1.0 20N3-SA5500.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?