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BIOS IdeaPad 3-17ADA05 GS450/GS550&GS750 NM-C821 Rev 1.0

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IdeaPad 3-17ADA05​

GS450/GS550&GS750 NM-C821 Rev 1.0
BIOS
boardview IdeaPad 3-17ADA05 - NM-C821 REV0.2 BoardView.tvw
Lenovo IdeaPad 3-15ADA05 LCFC NM-C821 GS450 GS550&GS750.pdf Schematics
LCFC NS-C821 IO r1.0.pdf
LCFC_NM-C821 photo


Screen Shot 2021-07-28 at 2.55.33 PM.png
 

Download list

IdeaPad 3-17ADA05.bin
8 MB · Views: 4,023



LCFC NS-C821 IO r1.0.pdf
723 KB · Views: 1,266

LCFC_NM-C821 photo.zip
16.7 MB · Views: 1,115

so need try BIOS other compare and check hardware.
i try 3 diferent bios is the same and check hardware? semms to be all ok power voltage 1.8 , 0.9 , 1.3 , 1.1 ,1.2 , 2.4 memory voltaje same ok gpu ok what can i check more?
 
i replace the ec as wel
Are the serial in both files.
Regards chris
yes, you can try tool this
 
yes, you can try tool this
hello
this will not work i also have the uefi version but it say eeprom fail.
and this machine have the it8227E chip and not the mec
 
yes, you can try tool this
Hello
Do you have a solution for me
 
yes, you can try tool this
hello
Do you know how to put this bios in program mode
I get the error eeprom read write protected
Regards chris
 

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