FT491 FX390 NM-B891 REV 2.0 2019-01-28 WORKING BIOS 100%.rar
BIOS / EC firmware for Asus FT491 / FX390 · board NM-B891 · 29.8 MB · shared in 2 Telegram posts.
TXTAbout FT491 FX390 NM-B891 REV 2.0 2019-01-28 WORKING BIOS 100% BIOS / EC firmware
FT491 FX390 NM-B891 REV 2.0 2019-01-28 WORKING BIOS 100% is an Asus FT491 / FX390 BIOS / EC firmware dump for board NM-B891 — tested. It is packed in a RAR archive of 29.8 MB, board revision 2.0. It was first posted on 5 Dec 2022 and is available in 2 Telegram channels.
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-B891 revision 2.0.
For the same board you can also find a boardview and a schematic — see all NM-B891 files.
- Type
- BIOS & EC
- Format
- .rar · RAR archive
- Size
- 29.8 MB
- Brand
- Asus
- Board number
- NM-B891
- Model
- FT491, FX390
- Revision
- 2.0
- Notes
- tested
- First posted
- 5 Dec 2022
- Last posted
- 21 Jul 2026
- Sources
- 2
Tags
MSGFrom the Telegram post
FT491 FX390 NM-B891 REV 2.0 2019-01-28 WORKING BIOS 100% TESTED OK 100%
J1Download NM-B891 BIOS / EC firmware from Telegram
- Bios & Schematics @laptopbios · 21 Jul 2026Open post
- BIOS ARCHIVE | BIOS |Laptop Firmware & Tools @biosarchive · 5 Dec 2022Open post
R1How to download FT491 FX390 NM-B891 REV 2.0 2019-01-28 WORKING BIOS 100%
- Press Download in Telegram. The post opens in the Telegram app, or on a t.me preview page — choose “View in Telegram”.
- You don’t need to join the channel. Tap the file FT491 FX390 NM-B891 REV 2.0 2019-01-28 WORKING BIOS 100%.rar to download it.
- Open it with 7-Zip (free) or WinRAR.
If a post was deleted, try another source above or search for NM-B891. 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.