Boards 12291-1 12 12291-2 18
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- W25Q128 20180416 122918BIOS · 16.0 MB · 9 May 2025BIOS bin—16.0 MB
- 20210812 122913 SVOD3BIOS · 16.0 MB · 9 May 2025BIOS bin—16.0 MB
- 12291-2 spi 1BIOS · 12291-2 · 8.00 MB · 5 May 2025BIOS bin8.00 MB
- 12291-2 Late DisplayBIOS · 12291-2 · 8.00 MB · 5 May 2025BIOS bin8.00 MB
- W540 LKM-1 WS MB 12291-2 SP11BIOS · 12291-2 · 8.00 MB · 13 May 2025BIOS bin8.00 MB
- W540 LKM-1 WS MB 12291-2 SP11BIOS · 12291-2 · 8.00 MB · 12 May 2025BIOS bin8.00 MB
- W540 - LKN-1 WS MB 12291-2 OLDBIOS · 12291-2 · 8.00 MB · 6 May 2025BIOS bin8.00 MB
- W540 LKM-1 WS MB 12291-2 SP12BIOS · 12291-2 · 4.00 MB · 6 May 2025BIOS bin4.00 MB
- LKM1 12291-1 WS SVT 130912 1400 ForWKSPESchematic · 12291-1 · 3.40 MB · 5 May 2025Schematic pdf3.40 MB
- Schematic Kome-1 WS 12291-1 (Thinkpad W540)Schematic · 12291-1 · 3.49 MB · 11 Dec 2023Schematic zip3.49 MB
- BoardView Kome-1 WS 12291-1 (Thinkpad W540)Boardview · 12291-1 · 227 KB · 11 Dec 2023Boardview zip227 KB
- KRUG 15 UMA Rev A00 CAD BOARDFILE 122910 162Boardview · 39.8 MB · 16 Nov 2022Boardview brd—39.8 MB
- W540 LKM-1 WS MB 12291-2 N25Q032AX3 EC BIOS GOCBIOS · 12291-2 · 4.00 MB · 6 May 2025BIOS bin4.00 MB
- Lenovo Thinkpad T540p Wistron Kome-1 WS 12291-1 Rev1Archive · 12291-1 · 1.67 MB · 8 Sept 2023Archive rar1.67 MB
- Lenovo Thinkpad T540p Wistron Kome-1 WS 12291-1 Rev1Archive · 12291-1 · 1.67 MB · 31 Mar 2021Archive zip1.67 MB
- W540 LKM-1 WS MB 12291-2 N25Q064AX3 AC BIOS GOC ZINBIOS · 12291-2 · 8.00 MB · 12 May 2025BIOS bin8.00 MB
- lenovo W540 lkm-1 ws mb 12291-2 ok testedBIOS · 12291-2 · 8.00 MB · 9 May 2025BIOS bin8.00 MB
- lenovo W540 lkm-1 ws mb 12291-2 ok testedBIOS · 12291-2 · 4.00 MB · 9 May 2025BIOS bin4.00 MB
- Lenovo Thinkpad W540 Wistron Kome-1 WS 12291-1 Rev -1 PDFSchematic · 12291-1 · 1.93 MB · 12 Nov 2025Schematic pdf1.93 MB
- AFS Lenovo w541 LKM-1 WS MB 12291-2 28.4L013.021BIOS · 12291-2 · 2.86 MB · 1 Feb 2024BIOS rar2.86 MB
- AFS Lenovo W540 LKM-1 WS MB 12291-2 Working BIOS DumpsBIOS · 12291-2 · 6.48 MB · 1 Feb 2024BIOS rar6.48 MB
- Lenovo W540 LKM-1 WS MB 12291-2 Both Bios JD BIOSBIOS · 12291-2 · 6.69 MB · 7 Apr 2021BIOS zip6.69 MB
- Lenovo w541 LKM-1 WS MB 12291-2 28.4L013.021 (Luirons Bios)BIOS · 12291-2 · 2.87 MB · 22 Feb 2021BIOS rar2.87 MB
- Lenovo Thinkpad W541 W540 Wistron LKM 1 WS 12291 2 Schematic & BoardviewBoardview · 2.07 MB · 31 Mar 2021Boardview rar—2.07 MB
- LKM 1 WS MB 12291 2 48 4LO13 021 WORKING BIOS 100% telegram BIOSBIOS · 5.94 MB · 24 Sept 2025BIOS zip—5.94 MB
- Lenovo W540 LKM 1 WS MB 12291 2 Working BIOS Dumps telegram BIOSBIOS · 6.82 MB · 24 Sept 2025BIOS zip—6.82 MB
- Lenovo W540 LKM 1 WS MB 12291 2 Working BIOS Dumps Luirons BiosBIOS · 6.49 MB · 23 Feb 2021BIOS rar—6.49 MB
- LKM 1 WS MB 12291 2 48 4LO14 021 SPI1 & SPI2 WORKING BIOS 100% telegramBIOS · 5.91 MB · 24 Sept 2025BIOS zip—5.91 MB
- LKM 1 WS MB 12291 2 48 4LO13 021 NP15 Q3 A1i7 4940MX WORKING BIOSBIOS · 12.4 MB · 24 Sept 2025BIOS zip—12.4 MB
- Lenovo W540 LKM 1 WS MB 12291 2 48 4L013 021 Working BIOS DumpsBIOS · 6.82 MB · 24 Sept 2025BIOS zip—6.82 MB
- LENOVO THINKPAD W541 LKM 1 WS MB 12291 2 48 4L013 021 WORKING BIOSBIOS · 6.07 MB · 24 Sept 2025BIOS zip—6.07 MB
- LENOVO THINKPAD W541 LKM 1 WS MB 12291 2 48 4L013 021 OKOK WORKINGBIOS · 5.94 MB · 24 Sept 2025BIOS zip—5.94 MB
- Lenovo w541 LKM 1 WS MB 12291 2 28 4L013 021 telegram BIOS RepairBIOS · 3.07 MB · 24 Sept 2025BIOS zip—3.07 MB
- AFS Lenovo W540 LKM 1 WS MB 12291 2 48 4L013 021 Working BIOS DumpsBIOS · 6.48 MB · 1 Feb 2024BIOS rar—6.48 MB
- 12291-1
Compact 186 KB RAR for Wistron motherboard 12291-1, the earlier revision of the board used in the Lenovo ThinkPad W540.
Archive · 12291-1 · 186 KB · 1 Aug 2022Archive rar186 KB - LKM-1 WS (12291-2 4LO13) (BDV)
Boardview for the Wistron board 12291-2, labeled LKM-1 WS, with the extra tag 4LO13 that identifies the board build.
Boardview · 12291-2 · 265 KB · 29 May 2021Boardview zip265 KB - 12291-2 spi 1
RAR archive of 2.76 MB for Wistron board 12291-2, labelled spi 1, which suggests the first SPI flash dump from a two-chip setup.
Archive · 12291-2 · 2.76 MB · 1 Aug 2022Archive rar2.76 MB - W540 LKM-1 WS MB 12291-2 SP11
RAR archive of 2.91 MB with firmware for the W540 laptop, board LKM-1, Wistron number 12291-2, marked SP11.
Archive · 12291-2 · 2.91 MB · 1 Aug 2022Archive rar2.91 MB - Lenovo Thinkpad W540 Wistron Kome-1 WS 12291-1 Rev -1
Service package for the Lenovo ThinkPad W540 in a 3.36 MB RAR, covering the Wistron Kome-1 WS motherboard, board 12291-1 Rev -1.
Archive · 12291-1 · 3.36 MB · 1 Aug 2022Archive rar3.36 MB - MEC1633 W540 12291-2.bin
EC firmware image in a ZIP of 108 KB for the Lenovo ThinkPad W540, meant for the MEC1633 embedded controller on board 12291-2, a Wistron-designed motherboard number.
BIOS · 12291-2 · 108 KB · 1 Aug 2022BIOS zip108 KB