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BIOS ThinkPad ET481 NM-B471 T480s (type 20L7, 20L8) BIOS +SCHAMATIC+BOARDVIEW

Laptops and Desktop Bios, Schematic and Boardview Files And Repairing Discussion
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About this board

This thread is for the ThinkPad ET481 T480s (type 20L7 20L8) with main board NM-B471.

The board was manufactured by LCFC for Lenovo. LCFC (Lenovo/Compal) board numbers start with NM-, so you can confirm it on the PCB silkscreen.

Files listed for this board
  • BIOS (full SPI chip dump, .bin)
  • Schematic (PDF)
  • Boardview (.brd / .bdv / .cad)

Usually needed when the laptop powers on with a black screen after a BIOS update, is stuck in a boot loop, or is locked with a BIOS password.

Before flashing, always read and save the original chip. It holds the serial number, UUID, MAC address and ME data for that exact machine.

Have a tested file for NM-B471? Reply below and help the next technician. Looking for something else? Search all files in the File Finder.

Attachments

LCFC NM-B471 EC.bin.zip
122.2 KB · Views: 22

NM-B471 16MB.bin.zip
8 MB · Views: 64

T480S NM-B471 - BOT.pdf
273.7 KB · Views: 45

T480S NM-B471 -TOP.pdf
222.2 KB · Views: 44

ThinkPad T480S LCFC NM-B471.pdf
9.9 MB · Views: 61

T480S NM-B471 Ver 1.0 BDV.rar
472.3 KB · Views: 27

Last edited by a moderator:
T480s (type 20L7, 20L8) Laptop (ThinkPad) - Type 20L8 NM-B471
CLEAN ME BIOS
W25Q128JV 16MB
FIXED EXTERNAL RAM NOT DETECT
SR340 (Intel Core i5-7300U)
TESTED IMRANROMI
...............................................................................................................

T480s (type 20L7, 20L8) Laptop (ThinkPad) - Type 20L8 NM-B471
CLEAN ME BIOS
W25Q128JV 16MB
FIXED SSD NOT DETECT
SR3LA (Intel Core i5-8250U)
TESTED IMRANROMI
 

Attachments

ThinkPad ET481 NM-B471 T480s (type 20L7, 20L8) BIOS +SCHAMATIC+BOARDVIEW – 1722438867663

Last edited:

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