NM-B501 EC / KBC Firmware

Part of NM-B501

NM-B501: 2 EC firmwares found in the source channels. The board is used in the Lenovo ThinkPad T480, Lenovo ThinkPad 01YR328 and Lenovo ThinkPad 20L6.

EC files 2

FileSizeRevAddedSource
ThinkPad T480 Type 20L5, 20L6 BIOS ET480 NM B501 16MB &1MB &EC IO
BIOSEC1 MB, 16 MB
8.5 MB
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Lenovo ThinkPad T480 NM-B501 Bios + EC
BIOSEC
8.4 MB
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Laptops that use NM-B501

  • Lenovo ThinkPad T480
  • Lenovo ThinkPad 01YR328
  • Lenovo ThinkPad 20L6

What these files are for

EC (embedded controller) firmware runs the keyboard controller, power sequencing, battery charging and fans. Depending on the board it lives in a separate chip (ENE KB9012, ITE IT85xx, Nuvoton NPCE) or inside the main SPI image, so check which applies before flashing.

Tools to open these files

FormatWhat it isOpen with
.rarRAR archive7-Zip or WinRAR