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LENOVO IdeaPad 3-15ALC6 Type 82KU NM-D521 BIOS, Schematic Boardview

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

IdeaPad 3-15ALC6 Type 82KU — motherboard NM-D521.

Lenovo had this board built by LCFC; LCFC (Lenovo/Compal) board numbers start with NM-. Check the number printed on the PCB before you download.

What this thread covers
  • 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.

Back up the original dump first — it contains machine-specific data (serial, UUID, MAC, ME), and you will want it if anything goes wrong.

If you have a working file for this board, please share it below. More files: search NM-D521 in File Finder.

Attachments




Last edited:

Attachments

IdeaPad 3-15ALC6 Type 82KU NM-D521 BIOS, Schematic Boardview – 5af19522-46b0-469d-8efa-287dd7754756 IdeaPad 3-15ALC6 Type 82KU NM-D521 BIOS, Schematic Boardview – 61e58762-5828-480a-9aaf-7216abb45ef4 IdeaPad 3-15ALC6 Type 82KU NM-D521 BIOS, Schematic Boardview – 20250425_203645
W25Q128JW1.8V@SOIC8.BIN
16 MB · Views: 10

BitLocker is activated after I install a new BIOS. Is there any way to fix this? This is the original BIOS file. Can we repair it?

dump bios file
 

Attachments

dump_ao.bin
16 MB · Views: 6

BitLocker is activated after I install a new BIOS. Is there any way to fix this? This is the original BIOS file. Can we repair it?

dump bios file
Bitlocker solution format ssd and install new Windows.
Other no solution
 

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