12291-2 is a Wistron motherboard used in Lenovo devices. Enginerys has 2 boardviews, 25 BIOS dumps and 5 archives for this board, collected from public Telegram channels.
Check that 12291-2 matches the number printed on your PCB, including the revision. Where to find it →
12291-2 boardviews
- LKM-1 WS (12291-2 4LO13) (BDV)
Boardview for LKM-1 WS, built on Wistron board 12291-2 with the 4LO13 code given in the name, tagged BDV.
Boardview · 12291-2 · 1.09 MB · 16 Sept 2021Boardview bv1.09 MB - 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 BIOS dumps
- 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 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
- 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
- W540 LKM-1 WS MB 12291-2 N25Q032AX3 EC BIOS GOCBIOS · 12291-2 · 4.00 MB · 6 May 2025BIOS bin4.00 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
- LKM 1 WS MB 12291 2 48 4LO13 021 NP15 Q3 A1i7 4940MX WORKING BIOS
Working BIOS for the LKM-1 WS platform on Wistron board 12291-2, identifier 48.4LO13.021, with NP15-Q3-A1 and Core i7-4940MX tokens indicating the GPU and CPU…
BIOS · 12291-2 · 17.9 MB · 28 Feb 2024BIOS rar17.9 MB - LKM-1 WS MB 12291-2 48.4LO13.021 WORKING BIOS 100%
BIOS dump for the LKM-1 WS mainboard, Wistron board number 12291-2 with identifier 48.4LO13.021, marked as fully working. It comes as an 8.05 MB rar archive.
BIOS · 12291-2 · 8.05 MB · 28 Feb 2024BIOS rar8.05 MB - LKM 1 WS MB 12291 2 48 4LO14 021 SPI1 & SPI2 WORKING BIOS 100%
Working firmware for the LKM-1 WS board, Wistron number 12291-2, identifier 48.4LO14.021, containing separate SPI1 and SPI2 images.
BIOS · 12291-2 · 9.18 MB · 28 Feb 2024BIOS rar9.18 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 THINKPAD W541 LKM 1 WS MB 12291 2 48 4L013 021 OKOK WORKING
Working BIOS dump for the Lenovo ThinkPad W541, LKM-1 WS motherboard, Wistron board 12291-2 with identifier 48.4L013.021, double-confirmed OK.
BIOS · 12291-2 · 7.07 MB · 8 Aug 2023BIOS rar7.07 MB - THINKPAD W541 LKM 1 WS MB 12291 2 48 4L013 021 CPU—i7 4710M SR17C
BIOS image for the ThinkPad W541 on the LKM-1 WS motherboard, Wistron 12291-2, part 48.4L013.021, with the name noting an Intel Core i7-4710M processor, stepping code…
BIOS · 12291-2 · 5.89 MB · 8 Aug 2023BIOS rar5.89 MB - LENOVO THINKPAD W541 LKM 1 WS MB 12291 2 48 4L013 021 WORKING BIOS
Working BIOS for the Lenovo ThinkPad W541, motherboard LKM-1 WS, Wistron board number 12291-2 with part code 48.4L013.021, packed as a 6.73 MB RAR.
BIOS · 12291-2 · 6.73 MB · 8 Aug 2023BIOS rar6.73 MB - W540 LKM-1 WS MB 12291-2 N25Q064AX3 AC BIOS GOC ZIN
BIOS dump for a W540 laptop with motherboard LKM-1, Wistron board number 12291-2, read from a Micron N25Q064AX3 64 Mbit chip; the name also marks it AC and GOC ZIN…
BIOS · 12291-2 · 3.39 MB · 1 Aug 2022BIOS rar3.39 MB - W540 LKM-1 WS MB 12291-2 N25Q032AX3 EC BIOS GOC
EC BIOS image for a W540 laptop board LKM-1, Wistron number 12291-2, read from a Micron N25Q032AX3 chip, a 32 Mbit (4 MB) SPI device, with GOC added in the name.
BIOS · 12291-2 · 2.82 MB · 1 Aug 2022BIOS rar2.82 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 - 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 w541 LKM-1 WS MB 12291-2 28.4L013.021
BIOS firmware for the Lenovo ThinkPad W541, Wistron board 12291-2 with the project label LKM-1 WS MB and the part code 28.4L013.021.
BIOS · 12291-2 · 2.87 MB · 22 Nov 2020BIOS rar2.87 MB - Lenovo W540 LKM-1 WS MB 12291-2 Working BIOS Dumps
BIOS dumps for the Lenovo ThinkPad W540 on the Wistron LKM-1 WS board 12291-2, described as working, packed in a 6.69 MB ZIP.
BIOS · 12291-2 · 6.69 MB · 16 Mar 2019BIOS zip6.69 MB
12291-2 archives
- W540 - LKN-1 WS MB 12291-2 OLD
Older firmware archive for a W540 laptop, listed as board LKN-1 with Wistron number 12291-2 and tagged OLD, 2.76 MB in RAR form.
Archive · 12291-2 · 2.76 MB · 1 Aug 2022Archive rar2.76 MB - W540 LKM-1 WS MB 12291-2 SP12
W540 firmware archive for motherboard LKM-1, Wistron board 12291-2, labelled SP12, compressed to 2.76 MB.
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 - 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 - 12291-2 Late Display
Package for Wistron motherboard 12291-2 in a 3.16 MB RAR, with a name pointing to a late display fix, meaning the screen appears only after a long delay at power-on.
Archive · 12291-2 · 3.16 MB · 1 Aug 2022Archive rar3.16 MB
Questions about 12291-2
Is there a schematic for 12291-2?
No standalone schematic PDF has been indexed for 12291-2 yet. Check the archives listed on this page — schematics are often packed together with the boardview — or search again later, as the index is updated daily.
Is there a boardview for 12291-2?
Yes, 2 boardview files are listed. Open them with OpenBoardView or the viewer named on the file page.
Who makes the 12291-2 board?
12291-2 follows the Wistron numbering scheme (xxxxx-x). It is found in Lenovo devices.