Laptop ideapad
BIOS 6MCN27WW
NM-B331 DS321.tvw
Laptop ideapad
6MCN27WW boardview and scahamatic OK
BIOS 6MCN27WW
NM-B331 DS321.tvw
Laptop ideapad
6MCN27WW boardview and scahamatic OK
About this board
Files for the Lenovo 720S-13 motherboard, board number NM-B331.
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-B331 in File Finder.
Attachments
720S EC DS321 NM-B331 Rev 0.2.BIN
1 MB · Views: 12
1 MB · Views: 12
720S-13I 81BV) Laptop (ideapad) 6MCN27WW.BIN.zip
5.3 MB · Views: 14
5.3 MB · Views: 14
