320-15IKB (Type 80XL, 80YE) Laptop (ideapad) 4wcn41ww Kabylake
EG521 EG522 EZ511 EG721 NM-B452 REV:1.0
BIOS 4WCN41WW
boardview NM-B452 R02_DIS
note check model type: xxxx
Schematics Lenovo Ideapad 320 LCFC EG521_EG522 NM-B452 Rev 0.2 schematic
EG521 EG522 EZ511 EG721 NM-B452 REV:1.0
BIOS 4WCN41WW
boardview NM-B452 R02_DIS
note check model type: xxxx
Schematics Lenovo Ideapad 320 LCFC EG521_EG522 NM-B452 Rev 0.2 schematic
About this board
Files for the Lenovo 320-15IKB (Type 80XL 80YE) EG521 EG522 EZ511 EG721 motherboard, board number NM-B452.
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. Board revision: 1.0. Match the revision as well as the board number.
What this thread covers
- BIOS (full SPI chip dump, .bin)
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-B452 in File Finder.
Attachments
EC.bin
128 KB · Views: 17
128 KB · Views: 17
4WCN41WW.BIN
8 MB · Views: 29
8 MB · Views: 29
Lenovo Ideapad 320 LCFC EG521_EG522 NM-B452 Rev 0.2 Schematic.pdf
16.3 MB · Views: 22
16.3 MB · Views: 22
NM-B452 R02_DIS.tvw.zip
2.5 MB · Views: 25
2.5 MB · Views: 25
