Lenovo Thinkpad L15 (CPU 10th Gen) Supervisor Password

[jawal37]

Re: Lenovo Thinkpad L15 (CPU 10th Gen) Supervisor Password

several months ago i added all the necessary configurations to the config file of the vertyanov programmer for these chips, but the programmer does not yet support these 2 chips, since there is no documentation on the programming protocol.

thinks

[evserv]

Re: Lenovo Thinkpad L15 (CPU 10th Gen) Supervisor Password

Several months ago I added all the necessary configurations to the config file of the Vertyanov programmer for these chips, but the programmer does not yet support these 2 chips, since there is no documentation on the programming protocol.

[jawal37]

Re: Lenovo Thinkpad L15 (CPU 10th Gen) Supervisor Password

To support this chip, you need documentation describing the programming algorithm ...
If anyone has this documentation please share with me.

hey i found your config for nm-c741 lenovo l15 win i read ec i have just ff in file
my lenovo is amd gl4a5/gl5a5 NM-C741 REV 1.0
ANY SOULITION THINKS

[AAAC]

Re: Lenovo Thinkpad L15 (CPU 10th Gen) Supervisor Password

@evserv
@SMDFlea
I've previously discussed the support for NPCE68APA0DX chip by Dediprog StarProg-U programmer with another forum user, so had installed the programmer software and see what information could get regarding this new chip.
Other Nuvoton EC/KBC chips have a flash size of 131,072 bytes, which use 17-bit addressing. According to Dediprog programmer software, this NPCE68APA0DX chip have a flash size of 00040000h bytes (or 262,144 bytes), which would need to use 18-bit addressing, maybe that's the only difference from previous Nuvoton chips and this new chip, the Vertyanov JIG and other similar software needs to be modified to address the other half of the flash to properly communicate with the chip, by adding 1-bit to the address.
2^17 = 131,072
2^18 = 262,144

[maksoft121]

Re: Lenovo Thinkpad L15 (CPU 10th Gen) Supervisor Password

There is another bios chip beside processor. i have the same issue lost the file in that chip.

please upload file from main bios.
the size may vary from 24mb to 30mb.

the file from second bios is 1 mb .

both needed to run the laptop.
lost one. please upload it for me.

thank you in advance .

[SMDFlea]

Re: Lenovo Thinkpad L15 (CPU 10th Gen) Supervisor Password

To support this chip, you need documentation describing the programming algorithm ...
If anyone has this documentation please share with me.

There are 2 dediprog programmers that have added support for the chip (july 2021). StarProg-U is the cheapest at $750 ,the adapter costs around 150 .Don`t know about the algorithm but you can find the chip ID if you search through the programmer software xml files .Maybe its downloaded from the dediprog server ?

[TPuser]

Re: Lenovo Thinkpad L15 (CPU 10th Gen) Supervisor Password

NPCE68APA0DX
Not one of the programmers available to us can work with this chip yet.
The problem is not with the config file, this chip uses a different protocol for reading and writing.
We just have to wait for the programmer's author to add an algorithm to his programmer to work with this chip!

So what if i just replace the nuovoton chip. Can it help?

[evserv]

Re: Lenovo Thinkpad L15 (CPU 10th Gen) Supervisor Password

To support this chip, you need documentation describing the programming algorithm ...
If anyone has this documentation please share with me.

[TopMan007]

Re: Lenovo Thinkpad L15 (CPU 10th Gen) Supervisor Password

NPCE68APA0DX
Not one of the programmers available to us can work with this chip yet.
The problem is not with the config file, this chip uses a different protocol for reading and writing.
We just have to wait for the programmer's author to add an algorithm to his programmer to work with this chip!

Evserv,
do you know when the author of programmer will update this one?
Thanks!!!

[evserv]

Re: Lenovo Thinkpad L15 (CPU 10th Gen) Supervisor Password

NPCE68APA0DX
Not one of the programmers available to us can work with this chip yet.
The problem is not with the config file, this chip uses a different protocol for reading and writing.
We just have to wait for the programmer's author to add an algorithm to his programmer to work with this chip!

[Karol]

Re: Lenovo Thinkpad L15 (CPU 10th Gen) Supervisor Password

Do you know something what I don't know ?
I'm available for exchange of information. But I think you will be stuck to.

[TopMan007]

Re: Lenovo Thinkpad L15 (CPU 10th Gen) Supervisor Password

I find the config, the problem is that the chip have different protocol for read/write operation. So the developer of the software programmers (SVOD, Vertyanov, RT809H, etc.) need to come with a software update.

For the moment everybody is stuck !

Hi Karol,
everybody is stuck until you share programming data sheet...

[imranromi]

Re: Lenovo Thinkpad L15 (CPU 10th Gen) Supervisor Password

I find the config, the problem is that the chip have different protocol for read/write operation. So the developer of the software programmers (SVOD, Vertyanov, RT809H, etc.) need to come with a software update.

For the moment everybody is stuck !

Can you share config file i try to read

[Karol]

Re: Lenovo Thinkpad L15 (CPU 10th Gen) Supervisor Password

Yet not have solution bios or via Programmer.For programmer you need to config file in nuvoton npce68apa0dx.
But now not have schematic so very hard for unlock.

I find the config, the problem is that the chip have different protocol for read/write operation. So the developer of the software programmers (SVOD, Vertyanov, RT809H, etc.) need to come with a software update.

For the moment everybody is stuck !

[iTec]

Re: Lenovo Thinkpad L15 (CPU 10th Gen) Supervisor Password

I can confirm that also, the chip is NPCE68APA0DX, I'm almost 99% positive that it does have different pin out than previous models. No keyboard settings worked, nor offline reading 👇🏼. The unit I'm working on is Ryzen.
The picture below is before I had placed the 2 10k resistors on designated pads.
No luck before or after.

[imranromi]

Re: Lenovo Thinkpad L15 (CPU 10th Gen) Supervisor Password

yes i got the same issue with this board, any way around it. Is there a standard board dump for this.

Yet not have solution bios or via Programmer.For programmer you need to config file in nuvoton npce68apa0dx.
But now not have schematic so very hard for unlock.

[Pcmot]

Re: Lenovo Thinkpad L15 (CPU 10th Gen) Supervisor Password

yes i got the same issue with this board, any way around it. Is there a standard board dump for this.

[Paficator]

Re: Lenovo Thinkpad L15 (CPU 10th Gen) Supervisor Password

Oh, I didn't know that, thank you for the information.

So I imagine that it's gonna be quite complicated to reprogram the chip with this format ^^
Is there any solution to delete the supervisor lock ?

[RethoricalCheese]

Re: Lenovo Thinkpad L15 (CPU 10th Gen) Supervisor Password

MX25L8006E is for sure thunderbolt 3 chip, nothing to do with bios/supervisor lock.

Your bios chip is right next to wifi card. But the password is not there either. It's most likely in nuvoton chip.

[Paficator]

Re: Lenovo Thinkpad L15 (CPU 10th Gen) Supervisor Password

Here is some pictures of the Motherboard.

I'm not used to work on it