lenovo legion 5-15ach6h bios request

[desmartbar]

post the contents of the bios chip even if it is corrupted..

The bios chip must be unsoldered from the board before writing or reading..
do not use the clip, you may have errors..if you do not have anything to unsolder it with,
solder wires between the programmer and the bios chip..

you need an SPI programmer...here is a video for example..https://www.youtube.com/watch?v=DWWi...nnel=ThisIsHow

post the 16MB bios..

I have the programmer, but i used a clamp/clip to read it from the board. i will desolder the chip and post the Dump file as soon as i get to it.
thanks for the guidance

[SMDFlea]

I have the programmer, but i used a clamp/clip to read it from the board. i will desolder the chip and post the Dump file as soon as i get to it.
thanks for the guidance

The 2MB file you posted is the NVIDIA vBios .Look again for the bios chip.

[desmartbar]

The 2MB file you posted is the NVIDIA vBios .Look again for the bios chip.

Thanks for mentioning! i suspected i was handling the wrong chip, now im sure! i will locate the bios chip and return here

[desmartbar]

Ok i think i have everything i need now.
I read the chip even tho the verification failed and saved the dump.

Awaiting further instructions

[magneh]

Hey everyone

Legion 5 15ACH6H

MB: NM-D562 rev 2.0
S/N: PF3QHTRT
MO: PF9XB2401016
MTM: 82JU00FQFR
Factory ID:JVHFC1
KBC:IT8227E-256
GN20-E3-A1
Ryzen 5 100-000000296

Laptop turns on power white led, and nothing else. No fan spin, no POST, nothing.
CPU and GPU are cold. I can see Im mising 1.2VP at pl3001 and +10v at PL7901

I think due to missing SUSP_N signal from ITE.

And yes, I've tried the bios from post#5

I cannot read the ITE with vertyanov through KB connector.

Does someone have EC dump for rev 2.0 for this model?
I will try to program and change ITE chip.
CPU does not seem shorted, it has 10 ohm resistance.

Any help is appreciated!
Thank you

[peste]

post the original contents of the bios chip..(main)..

[magneh]

post the original contents of the bios chip..(main)..

Meanwhile Ive been able to read the KBC.

I leave here both dumps.

[SMDFlea]

Ok i think i have everything i need now.
I read the chip even tho the verification failed and saved the dump.

Awaiting further instructions

try this bios.

[SMDFlea]

Meanwhile Ive been able to read the KBC.

I leave here both dumps.

Your EC backup is corrupt and only 128KB . Bios + 256KB EC attached.

[magneh]

Your EC backup is corrupt and only 128KB . Bios + 256KB EC attached.

Thank you SMDFlea!

Should I only flash EC bios and leave original bios as is?
Or should I ALSO flash the bios dump you attached?
Thanks for the input!

I will test and let you know

[SMDFlea]

flash both