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

Star Rating

5.00 star(s)

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

 

[Abbas ALi]

IdeaPad 3-17ADA05​

GS450/GS550&GS750 NM-C821 Rev 1.0
BIOS

thank you

 

[AmaSua]

hi! and bios EC not?

 

[ThienBui]

.

 

[Luka1]

hello. Someone can confirm that this bios function? I still have balck screen problem after flash it. Thanks

 

[ThienBui]

hello. Someone can confirm that this bios function? I still have balck screen problem after flash it. Thanks

no display have many problem, not only BIOS
you need check hardware.

 

[Luka1]

no display have many problem, not only BIOS
you need check hardware.

Yes, I done. Bios is my last way.....

 

[Jejeje]

I have a Lenovo 3 15ADA05 NM-C821.
The laptop doesn't display image after updates. Maybe a wrong BIOS update.
I suspect a BIOS problem but the dump of this thread doesn't solve the problem.


Can you help me to repair the Original Bios or other dump?

 

[ThienBui]

I have a Lenovo 3 15ADA05 NM-C821.
The laptop doesn't display image after updates. Maybe a wrong BIOS update.
I suspect a BIOS problem but the dump of this thread doesn't solve the problem.


Can you help me to repair the Original Bios or other dump?

AMD Please check chipset

 

[viorelus]

I have a Lenovo 3 15ADA05 NM-C821.
The laptop doesn't display image after updates. Maybe a wrong BIOS update.
I suspect a BIOS problem but the dump of this thread doesn't solve the problem.


Can you help me to repair the Original Bios or other dump?

Hi. I can confirm your bios its ok (i just fixed my laptop with it) thanx!!!

 

[jangkrix666]

halo.... boardview please for this series NM-C821

 

[ThienBui]

halo.... boardview please for this series NM-C821

current Unavailable

 

[israel santana]

Tengo un Lenovo 3 15ADA05 NM-C821.
La computadora portátil no muestra la imagen después de las actualizaciones. Quizás una actualización incorrecta del BIOS.
Sospecho que hay un problema de BIOS, pero el volcado de este hilo no resuelve el problema.


¿Me pueden ayudar a reparar la BIOS original u otro basurero?

gracias

 

[jamesjihan]

IdeaPad 3-17ADA05​

GS450/GS550&GS750 NM-C821 Rev 1.0
BIOS

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.

 

[RafalFinaltech]

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

 

[ThienBui]

hard to determine

 

[cianyika]

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

 

[ThienBui]

power led is blinking and laptop is reseting after 5 second

You mean the laptop is still working normally?

 

[cianyika]

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

 

[ThienBui]

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.