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Lenovo Yoga 920 LCFC NM-B291 ( DYG60 ) Schematics

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Lenovo Yoga 920 LCFC NM-B291 ( DYG60 )
Yoga920 KBL-U42 SIT Schematic Block Diagram
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Lenovo Yoga 920-13IKB - EYG70 NM-B291 Boardview.tvw
Lenovo YOGA 920-13IKB NM-B291 photo

Screen Shot 2021-08-04 at 11.58.15 PM.jpg
 

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NM-B291.jpg
NM-B291.pdf
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Yoga 920 NM-B291.bin
8 MB · Views: 782


Can you give me a good version for bios 1MB size? Laptop is on, fans are spinning but no image. It draws around 0.54-0.60 A. I tried the 8MB bios you gave in first post and it's the same.
 

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25q80dv.bin
1 MB · Views: 9

Can you give me a good version for bios 1MB size? Laptop is on, fans are spinning but no image. It draws around 0.54-0.60 A. I tried the 8MB bios you gave in first post and it's the same.
1MB you can nnon Programming
it no have data like BIOS normal
 
please repair,no detect keyboard and mousepad,other bios i have tried ok,keyboard ok but many many eror and operating system cannot booting
Keyboard is not related to BIOS
or need try BIOS other and compare can not check and fix keyboard form bios
 
Keyboard is not related to BIOS
or need try BIOS other and compare can not check and fix keyboard form bios
i have tried other bios ok,keyboard working good but some error before logo windows come,and windows stuck on logo.
 
i have tried other bios ok,keyboard working good but some error before logo windows come,and windows stuck on logo.
I have same problem, keyboard not detect, in my case help programming ITE
NM-B291 KB_pins=30 (JP13) PD0=20 PD1=16 PD2=14 PD3=9 PD4=13 PD5=17 PD6=10 PD7=12 BUSY=23 STB=15 AFD=26 INIT=19 SLIN=18 KSI4=22 KSI5=21
 
I have same problem, keyboard not detect, in my case help programming ITE
NM-B291 KB_pins=30 (JP13) PD0=20 PD1=16 PD2=14 PD3=9 PD4=13 PD5=17 PD6=10 PD7=12 BUSY=23 STB=15 AFD=26 INIT=19 SLIN=18 KSI4=22 KSI5=21
This problem needs to be checked directly
 

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