SVOD4 NPCX997

[Maxpower3]

13. Open the file with a HEX editor



14. Fill the displayed area with 00

clean 3e420 too

try but not working because many repetitions

[james-b0nd]

I'd like to send you my original .bin file. Could you edit it completely for me?

We have two layers here:

3e320 and 3f320 (see images)

I've already scoured the internet with the help of AI
And there are many different methods for what needs to be zeroed out.

[Kodza]

Perhaps this guide will help someone who's just starting out.

Thank you James Bond, I have done what you say from 1 to 11 and I get error 20, when I ask SVOD4 Support they say "arm not answer" maybe there is differences on the circuit between T14 GEN 3- NM-E441 and T14 GEN 4-NM-F261 on the NPCX997 circuit on the schematic although they look similar although I see someone able to read it on NM-F261

[Kodza]

Sorry I forgot to say that I can only get that error reading when I select motherboard, if I select Nuvoton and config I can't detect anything but when I select NM-F261 motherboard and read ID it will give me ERROR 20

[james-b0nd]

clean 3e420 too

try but not working because many repetitions

As soon as I reset the three numbers in the 3e420 line to zero, the supervisor password is activated again and I can't access the BIOS.

What exactly did you do to make it work for you?

[Maxpower3]

As soon as I reset the three numbers in the 3e420 line to zero, the supervisor password is activated again and I can't access the BIOS.

What exactly did you do to make it work for you?

try

[james-b0nd]

GREAT! Thanks Maxpower3.
Now I can edit all the data in the BIOS.
I still get the following messages at startup:

[Maxpower3]

GREAT! Thanks Maxpower3.
Now I can edit all the data in the BIOS.
I still get the following messages at startup:

use lenovo golden key for clean dump and restore your number after

[Maxpower3]

If you can send a reading after the clean dump eprom on the forum, it will be useful to everyone, thank you.

[james-b0nd]

OK, I'll read through the thread today and do it later and report back.

[Maxpower3]

OK, I'll read through the thread today and do it later and report back.

B0 (8) SB21H32283L1HF34X00KA
C0 (1) S21CGS1D600PF4AFKP5
Model type ThinkPad T14 Gen 3

[james-b0nd]

I can't get any further here



OK, just ignore step 2 and then click on "Update" and it will work.

[james-b0nd]

OK, here's what I did.


I can't set the "C0"

[Maxpower3]

OK, here's what I did.


I can't set the "C0"

C0 1S21CGS1D600PF4AFKP5

And B0 must start with 8S I believe. I marked in parentheses


Did you clean the dump before rewriting the numbers?
It's better to start with a clean dump.
Otherwise you risk having errors.
Use the eeprom operations function.(5)

[james-b0nd]

That worked

[james-b0nd]

He writes that he wrote the SN, but unfortunately, it wasn't written. What is the reason for this?

[Maxpower3]

He writes that he wrote the SN, but unfortunately, it wasn't written. What is the reason for this?

try with planar service
what version of U1 (3.5.40)??
try maybe last update

[james-b0nd]

I've now tried 3.5.75, and it shows me that the system is locked.

At least I've gotten a few fewer error messages.

[Maxpower3]

I've now tried 3.5.75, and it shows me that the system is locked.

At least I've gotten a few fewer error messages.

USB key incorrectly formatted, use the usbmtpw utility and put files in the key after.

[james-b0nd]

Everything worked now!

All error messages are gone.


GREAT, thanks Maxpower3 😁