320-15IKB (Type 80XL, 80YE) (ideapad) EG521 EG522 EZ511 EG721 NM-B452 REV 1.0


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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.pdf
Screen Shot 2019-12-23 at 1.28.21 PM.jpg
 

Download list

4WCN41WW.BIN
8 MB · Views: 1,078

EC.bin
128 KB · Views: 462

NM-B452 R02_DIS.tvw.zip
2.5 MB · Views: 1,004


servisntb

Active Member
VIP PRO
Nov 20, 2019
108
7
no display with bios from all theme. With old one have display but after shut down dead. Need to disconnect baterry and rtc and start again until next shut down.
I also solved this problem. This is a problem with the EC Bios program. In my case, NM-B452, the problem was solved by programming the IO chip
 

xcom

Active Member
VIP MEMBER
Jul 22, 2020
3
0
hello, which software do I use to open the boardview, since it has * .tvw extension
 

ThienBui

Techniques
Supporter
Dec 13, 2013
111,298
7,651
vinafix.com

Rubão

Active Member
VIP PRO
Mar 2, 2020
12
1
320-15IKB ( Tipo 80XL, 80YE ) Laptop (ideapad) 4wcn41ww Kabylake
EG521 EG522 EZ511 EG721 NM-B452 REV: 1.0
BIOS 4WCN41WW
boardview NM-B452 R02_DIS
observe o tipo de modelo de verificação: xxxx
Esquemas Lenovo Ideapad 320 LCFC EG521_EG522 NM-B452 Rev 0.2.pdf
View attachment 108122
ola administrador preciso de ajuda ajude a recontruir minha bios
lenovo 330 nm-b452
i7 oitava geracao com video nvidia