Lenovo Thinkpad Ec Pwd Bypass

[SMDFlea]

LPC_AD2 WORK GOOD IN RC0905 NEAR PROC

What model is that ?

[jawal37]

LPC_AD2 WORK GOOD IN RC0905 NEAR PROC

[kyzer]

Connect your motherboard to an external screen or with the original LCD, being careful.
Uses a USB keyboard to make things easier and avoid communication problems with the KBC(Ec)
Prepare a ground wire.
When everything is ready.

You must put a wire on the ground and make a light contact (1 -2 seconds should be enough).
If too long, errors occur : Fan error, Bad data, Thermal sensor etc ... and power off

Wait the Logo or just after the backlight.
Short contact with pin 128 or 1, wait and release
and press F1 to enter setup

After clearing security with blank password
and clear security chip.
Simply restart with Ctrl Alt Del
And test now


Warning:
Do not short before full startup (backlight), nor during shutdown.
Follow this carefully, otherwise there is a risk of bricking or corrupted data.

[Tokeri]

I understand that it will work, try.

I can report, it works! Took a few tries but now I have an unlocked L14 laptop

[Geromen]

Hello, I have a question. Since this method works by shorting LPC, does it also work with AMD models? I have a L14 gen 1 ryzen model, that I got the schematics for and it shows that it also uses LPC bus for EC communication. From what i understand, the only EC that don't work are the ones using eSPI.

I understand that it will work, try.

[Tokeri]

Hello, I have a question. Since this method works by shorting LPC, does it also work with AMD models? I have a L14 gen 1 ryzen model, that I got the schematics for and it shows that it also uses LPC bus for EC communication. From what i understand, the only EC that don't work are the ones using eSPI.

[softlibs]

i tried the shorting technique on a p53s and now it boots to a blank screen.

how do i recover from this? also i probably shorted the wrong chip, i was poking around on the j9301

i'm reading right now but rather frustrated with many many other things that y'all have the space to have dumped on you here.

[Andreasbest]

On T470s is on J5 (hidden behind the Mac Address sticker) in case anyone is searching for it

[Gabrielsun]

post S/N, full name and model, motherboard model, TYPE,etc.

S/N: PF3LEK30
Machine Type Model: 20XW005JGE
System board serial number: L2HF23P010Z

[rediii]

Hi,
I purchased an X1 Carbon Gen 8 a few years ago, but unfortunately discovered it’s locked with a BIOS password. Will this method work to bypass or reset it?

yes, you can program it. these devices have a mec1633 chip. try the shorting technique or program via jtag or kbc. greetings

[rediii]

Hello everyone,


I'm new to the forum and looking forward to learning something new.
I got a Lenovo Thinkpad X1 Carbon Gen9 (with intel CPU) on which the USBC ports were broken, these are now repaired, I have reinstalled the notebook with Win11 and actually everything works, but it has a bios supervisor password.

is there any way to read out the password, or install a new bios? or any other methods?

as I said, I am an absolute beginner and need to get an overview first




Greetings to all

not possible... mec1503/1723

[peste]

Hello everyone,


I'm new to the forum and looking forward to learning something new.
I got a Lenovo Thinkpad X1 Carbon Gen9 (with intel CPU) on which the USBC ports were broken, these are now repaired, I have reinstalled the notebook with Win11 and actually everything works, but it has a bios supervisor password.

is there any way to read out the password, or install a new bios? or any other methods?

as I said, I am an absolute beginner and need to get an overview first




Greetings to all

post S/N, full name and model, motherboard model, TYPE,etc.

[peste]

post merged..next time look for a thread with the name and model, motherboard model of the laptop, and post there, if you can't find it, then make a new thread..

[Gabrielsun]

Hello everyone,


I'm new to the forum and looking forward to learning something new.
I got a Lenovo Thinkpad X1 Carbon Gen9 (with intel CPU) on which the USBC ports were broken, these are now repaired, I have reinstalled the notebook with Win11 and actually everything works, but it has a bios supervisor password.

is there any way to read out the password, or install a new bios? or any other methods?

as I said, I am an absolute beginner and need to get an overview first




Greetings to all

[anhbanxoi]

Any luck with Lenovo ThinkPad T14 Gen 2 Type 20w1 ? S/N 45at48

replace the MEC

[Andromedus_81]

Any luck with Lenovo ThinkPad T14 Gen 2 Type 20w1 ? S/N 45at48

[veridiux]

no solution bypass chips mec1503 , mec1723/24 yes solution Hardware by replacing mec1723 chip

Do you happen to know anyone who does this online? I live in a rural area, so not very many repair shops.

[Usering]

Hello

Has anyone unlocked the Lenovo X380 Yoga 20lj model? If so, could they suggest which pin they used?

S/N 1htx0j

there is 3 way solutions
solution by patching bios if size 16mb
solution programming EC , by programmer (svod, vertyanov or rt809…)
solution LPC by jumper pon LAD0

[Usering]

Hi,
I purchased an X1 Carbon Gen 8 a few years ago, but unfortunately discovered it’s locked with a BIOS password. Will this method work to bypass or reset it?

no solution bypass chips mec1503 , mec1723/24 yes solution Hardware by replacing mec1723 chip

[veridiux]

Hi,
I purchased an X1 Carbon Gen 8 a few years ago, but unfortunately discovered it’s locked with a BIOS password. Will this method work to bypass or reset it?