L14 gen2 Supervisor Password Removal

[mr2]

Hey,
I have a T14 lenovo gen2 laptop with a locked bios Supervisor Password Removal.Can someone patch it.

BIOS ROM:

[Maxpower3]

https://www.badcaps.net/forum/troubl...ting#post91592

Provide the full machine model number, serial number (or Service tag, SNID) and the board model number

[mr2]

Sorry,here
SN:PF-3KVGGE
type number:20X2-s0Xw00

[SMDFlea]

Attach files directly to your post instead of linking to external websites https://www.badcaps.net/forum/troubl...ting#post91592

[mr2]

ROM

[Maxpower3]

no solution via Bios dump anyway.
Read SIO/EC to unlock this model or magic contact can work maybe

I can confirm it works on L14 G2 AMD, NM-D391 Thank you!

[mr2]

What do you mean by SIO/EC? Where can I find the board view for this laptop?

[Maxpower3]

3.7.3. Flashing EC (SMSC MEC, 2019-*)
On the latest generations of ThinkPads, the security issue that allowed to inject the DXE driver and bypass the password does not exist anymore. The password is still stored inside the EC, in a write-only region.
However, it appears that dumping the EC with a dedicated programmer, erasing it and flashing back can actually clear the password. See: https://www.badcaps.net/forum/showth...t=95736&page=5
https://www.badcaps.net/forum/showthread.php?t=111439

https://www.badcaps.net/forum/troubl...=4#post1622423

[mr2]

The motherboard is NM-D271 where can I find the pins for the EC and what programmer do I need(I have jtag/pi)?

[MOD EDIT] Link to schematic https://www.badcaps.net/forum/troubl...15#post1749815

[volinakis]

The motherboard is NM-D271 where can I find the pins for the EC and what programmer do I need(I have jtag/pi)?

[MOD EDIT] Link to schematic https://www.badcaps.net/forum/troubl...15#post1749815

svod3 or 4, by keyboard connector.

[mr2]

Where can I find a cheap svod3/4 clone ?

[SMDFlea]

Where can I find a cheap svod3/4 clone ?

There isn`t a clone of those programmers, only other alrternatives like Vertyanov SUCCESSOR, RT809H

[mr2]

Can I use the RT809H to read/write NPCE68B(nutivo)?

[SMDFlea]

Can I use the RT809H to read/write NPCE68B(nutivo)?

I don`t know, search the forum, someone might have done it, or it might not be possible. https://www.badcaps.net/search?q=NPC...68BPA0DX%22%7D

[mr2]

Hey,I have NM-C741 L14 gen2 Lenovo.I have dumped the EC bios.What do I need to do to remove the supervision password?

Thanks you.

[SMDFlea]

Thread merged with your previous one...

[ibo]

Try this

[Maxpower3]

Try this

bad data i think , I'm waiting to see