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Lenovo ThinkPad A275 NM-B361 BIOS BIN+SCHAMATIC+BOARDVIEW

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A275 (Type 20KC, 20KD) Laptop (ThinkPad)
BIOS DA275 NM-B361 REV1.0
Lenovo ThinkPad A275 LCFC WolVerine4 AMD Rev SIT- NM-B361 DA275.pdf
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About this board

This thread is for the Lenovo ThinkPad A275 with main board NM-B361.

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)

Typical reasons to reflash: no power or no display after a failed BIOS update, a BIOS/supervisor password lock, or a corrupted Intel ME region.

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-B361 in File Finder.

Attachments

DA275 NM-B361.rar
4.8 MB · Views: 18
Click to expand...
Hello, Can anyone tell me where the bios lock is on this model?
is it on the main bios chip and is it patchable or is the lock on the EC
and will need jtag. What method to unlock this model if its is unlockable Thanks.
 
Dan20701 said:
Hello, Can anyone tell me where the bios lock is on this model?
is it on the main bios chip and is it patchable or is the lock on the EC
and will need jtag. What method to unlock this model if its is unlockable Thanks.
Click to expand...
Password inside Ec
Can make patch this bios
 
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