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IdeaPad 3-17ADA05
GS450/GS550&GS750 NM-C821 Rev 1.0BIOS
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
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
thank you
no display have many problem, not only BIOS
you need check hardware.
Yes, I done. Bios is my last way.....
AMD Please check chipset
Hi. I can confirm your bios its ok (i just fixed my laptop with it) thanx!!!
halo.... boardview please for this series NM-C821
current Unavailable
israel santana
Registered member
gracias
jamesjihan
Registered member
I've successfully flashed this BIN for Lenovo IdeaPad 3-14ADA05.
Accidentally rewrote the old DUMP my new HEX edits (It's a mess Shhhh)Guys, I was so confused why this machine is soldered 16M-bit chip for 8M-bit data.
Chip model is: Winbond 25Q64JWSIQ | 2006
My programmer doesnt have this model/type to select then I selected the closest model for 64M-bit and flashed above BIN.
TIP:
Do not try another new BIN flash when you not getting BOOT screen. Just do try this before another flash.
Lenovo machines will not give you BIOS screen on your first try form a fresh data. Just give it for a minute to roll up. Remember to power up using power adapter (main battery not necessary better using only power adapter) After that force shutdown using power button. Soon it will boot to BIOS screen. Some models need this process 2,3,4 times (manually).
TIP:
How I confirmed for BIOS corruption for ASUS, Lenovo, ACER... is if my diagnostic shows dim flash or change the black screen little bit (look closely) then it stays dark black gray color, running all powers then heat up CPU finally fan spin 0-100. In this case i would say 90% it means the BIOS need to re-programming. This is just one method I confirmed and go through it.
Hope someone got a tip from me.
Last edited:
Hello.
I cant find board view or schematic for MB NM-C821
I need to know what is one perticular BGA device.
It is written 0qCRE but i cannot find it anywhere.
Maybe You can help to identify this device.
Thanks
I cant find board view or schematic for MB NM-C821
I need to know what is one perticular BGA device.
It is written 0qCRE but i cannot find it anywhere.
Maybe You can help to identify this device.
Thanks
hello i have a problem with lenovo NM-C821 the power led is blinking and laptop is reseting after 5 second i have mesure all power lines are ok i try to write a bios but still same problem, i remove baterry i thinkthe problem is the EC BIOS i wanna try but i do not have it the power management is LENOVO IT8227E-128 canu help me thanks
You mean the laptop is still working normally?
no is not working normaly i have no display image and is reseting the ventilator at 10 seconds, and the power led is infinite blinking from the moment i conect the charger
so need try BIOS other compare and check hardware.
