Boards 12291-2 1
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- w540 orig ecBIOS · 4.00 MB · 6 May 2025BIOS bin—4.00 MB
- w540 orig ec
Original EC firmware for a W540 laptop, packed into a 2.76 MB RAR archive. The embedded controller handles power-on sequencing, battery charging, keyboard and fan…
BIOS · 2.76 MB · 1 Aug 2022BIOS rar—2.76 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