LCFC boardLaptop mainboardUpdated 2026-07-21
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NM-B891 schematic, boardview & BIOS

LCFC board used in Lenovo ThinkPad T490S, Lenovo ThinkPad T490S X390, Lenovo ThinkPad X390, Lenovo ThinkPad X390 20Q1. FX390 FT491 Lenovo ThinkPad T490S Lenovo ThinkPad T490S X390 Lenovo ThinkPad X390 Lenovo ThinkPad X390 20Q1

Files for NM-B891 (9)

TypeFormatFile nameRev SizeAddedDownloadMirror
Schematic .pdf Lenovo Thinkpad T490s NM-B891 Schematic.pdf — 3.2 MB Telegram #1 #2
Boardview .bdv Thinkpad T490S NM-B891 (BDV)(TVW).zip — 1.7 MB Telegram #1
BIOS .rar FT491 FX390 NM-B891 REV 2.0 2019-01-28 WORKING BIOS 100%.rar 2.0 30 MB Telegram —
BIOS .rar FT491_FX390_NM_B891_REV_2_0_2019_01_28_BIOS_&_TYPE_C_&_MEC_32MB.rar 2.0 15 MB Telegram —
BIOS .rar LENOVO Thinkpad X390 20Q1 NM-B891 REV 2.0 TASTED BY FST FIX.rar 2.0 10 MB Telegram —
BIOS .bin LENOVO_X390_Type_20Q0,_20Q1_FT491_FX390_NM_B891_REV_2_0_Tasted_BY.bin 2.0 32 MB Telegram #1
BIOS .rar LENOVO_X390_UNLOCK_NM_B891_MAIN_+EC_+EPROM_OK_TESTED_LAN_OK_2.rar — 11 MB Telegram #1
BIOS .rar AFS_LENOVO_T490S_FT491_FX390_NM_B891_REV_2_0_2019_01_28_UNLOCKED.rar 2.0 8.2 MB Telegram —
BIOS .rar ThinkPad T490S X390 FX390 NM-B891 Rev2.0 MX25L25633F.rar 2.0 15 MB Telegram #1

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Models using this board

Model names are taken from the file names as published; always confirm the board number printed on your PCB.

How to open these boardview files

FormatOpens with
.bdv BoardViewer (Borneo), OpenBoardView, FlexBV