Lenovo Thinkpad Ec Pwd Bypass

[Maxpower3]

Thank you very much! The "retry+" works fine without SVP error.
I have another one Thinkpad with ncpx897. How I can modify second dump? Is there a patcher or is it manual mode?

manual

[Nikolson]

Thank you very much! The "retry+" works fine without SVP error.
I have another one Thinkpad with ncpx897. How I can modify second dump? Is there a patcher or is it manual mode?

[Maxpower3]

Hello, I need unlock bios password Lenovo Thinkpad P15v Gen1 S/n PF-2VZK7T Type number 20TQ motherboard is nm-c641
KBC is NPCX897
I reed ec and tried to modify dump but I get these errors and the machine shut down. Please help.

retry or retry+

[Nikolson]

Hello, I need unlock bios password Lenovo Thinkpad P15v Gen1 S/n PF-2VZK7T Type number 20TQ motherboard is nm-c641
KBC is NPCX897
I reed ec and tried to modify dump but I get these errors and the machine shut down. Please help.

[wraster]

lad 0 or 1/2/33
look

Success! Thank you!! I didn't get a Lenovo splash screen at all so I started systematically tracking when I started to hold and for how long, and the resulting errors and whatnot. Unfortunately the time it worked I had lost my concentration and didn't get exact times, but it ended up being about starting at 3.5 about seconds after and holding for about 4.5 seconds.

[babanu]

Hello
For a lenovo thinkpad x13 gen.4 motherboard nm-e812 kbc mec1723 is there any chance to delete the supervisor password.Thank you

[Kokofli]

Attaching also Thinkpad X280 Files for anyone may need them.

[Maxpower3]

oh god.. thanks. gonna try. fortunately, I have a backup that I took out of the locked Bios

the numbers are marked in EC, not in the bios!!
no need to touch the bios.
Take photos of the 1st page and use the utility.
Or if you still have the labels on the motherboard or on the cover
you can recover the numbers with luck

Besides, I don't see your serial number indicated in your posts as the rule indicates.
This could have been useful if you lost it during handling

[Maxpower3]

Salut frero maxpower comment decoder p15 lenovo

Maybe start by reading the forum rules and stop sending me private messages.
I already share and give solutions for free here.

Many people told me not to share because part of the community does not deserve these solutions.
Next time I will think twice


Mainboard number, serial number, Ec model
Thanks
Where is it!!

[Rickyspanish]

you corrupted the numbers!.
you didn't check if everything was correctly written in the first page of the bios where you used F10 to exit.
you must read all the information indicated on this thread before doing the manipulation.
use lenovo utility to correct this

2200: Machine Type Invalid and Serial Number are invalid.
0188 : invalid RFID serialisation information area.

Save information befor use utility
bios pictures
and save B0 and C0 if still written in the utility before erasing or modifying the eeprom

https://www.badcaps.net/forum/troubl...r-bootable-usb

oh god.. thanks. gonna try. fortunately, I have a backup that I took out of the locked Bios, but my pads are almost dead and I don't think that they will support another fun session of trying to get into bios like today. Im gonna try the utility that you linked. thanks!

[Maxpower3]

Thank tou for this Maxpower3 !!! Managed to unlock 3 Lenovo X280 with i5-8250U & i7-8650U! 🤘🤘

thanks for feedback

[Maxpower3]

im Happy to announce that I managed to delete the supervisor password. my problem was that the ground of the USB were not working good. I took the ground from the frame of the USB and Voilá! it worked like a charm in just a few tries.
but right now I have a problem, when booting, the computer says error 0188 and 2200, any Idea about how to solve it? thanks in advanced.

you corrupted the numbers!.
you didn't check if everything was correctly written in the first page of the bios where you used F10 to exit.
you must read all the information indicated on this thread before doing the manipulation.
use lenovo utility to correct this

2200: Machine Type Invalid and Serial Number are invalid.
0188 : invalid RFID serialisation information area.

Save information befor use utility
bios pictures
and save B0 and C0 if still written in the utility before erasing or modifying the eeprom

https://www.badcaps.net/forum/troubl...r-bootable-usb

[Kokofli]

Thank tou for this Maxpower3 !!! Managed to unlock 3 Lenovo X280 with i5-8250U & i7-8650U! 🤘🤘

[Rickyspanish]

Mate. I cannot find the right timing, Im using a USB cable, took the pin 4 the one with the black cable, solder to pin 6 and with a switch in the middle. Im trying for several hours and I don't see any improvement I already lifted the pad of the pin 8 , I saw your video on youtube and tried to figure out the timings but I cannot nail it. It is after the lenovo logo? before? I saw on your video that you start pressing F1 since you press the power button, am I right? it seems that you push the tip against the pin/pad but I cannot see how much longer nor when in the process. can you give me some linformation? I read that some guy were succesful with a fast short just when lenovo logo comes, but I tried it houndreds of times with no succesful results. Any help would be highly appreciated, I bought this computer with a very good price on Ebay, and it cames with the bios locked (was not in the description). I dont want to return it because it was a very good price. thanks in advanced to everyone who can help me. my Motherboard is the exact same model NM-B471.

im Happy to announce that I managed to delete the supervisor password. my problem was that the ground of the USB were not working good. I took the ground from the frame of the USB and Voilá! it worked like a charm in just a few tries.
but right now I have a problem, when booting, the computer says error 0188 and 2200, any Idea about how to solve it? thanks in advanced.

[Rickyspanish]

T480S NM-B471
Tested Ok

Mate. I cannot find the right timing, Im using a USB cable, took the pin 4 the one with the black cable, solder to pin 6 and with a switch in the middle. Im trying for several hours and I don't see any improvement I already lifted the pad of the pin 8 , I saw your video on youtube and tried to figure out the timings but I cannot nail it. It is after the lenovo logo? before? I saw on your video that you start pressing F1 since you press the power button, am I right? it seems that you push the tip against the pin/pad but I cannot see how much longer nor when in the process. can you give me some linformation? I read that some guy were succesful with a fast short just when lenovo logo comes, but I tried it houndreds of times with no succesful results. Any help would be highly appreciated, I bought this computer with a very good price on Ebay, and it cames with the bios locked (was not in the description). I dont want to return it because it was a very good price. thanks in advanced to everyone who can help me. my Motherboard is the exact same model NM-B471.

[babanu]

Hello everyone I have a laptop lenovo Thinkpad L13 Gen.2 Serial R9-125S7V Type number 20VK-S02400 bios passworded and locked in computrance KBC NPCE68BPA and SAS programmer A tutorial or some information if you can trick me Thank you!!

Hello For the above lenovo model equipped with NPCE68, among the 4 pins to ground 126,127,128,1 after many attempts the functional pin is 126

[jackx]

Salut frero maxpower comment decoder p15 lenovo

[babanu]

Hello everyone I have a laptop lenovo Thinkpad L13 Gen.2 Serial R9-125S7V Type number 20VK-S02400 bios passworded and locked in computrance KBC NPCE68BPA and SAS programmer A tutorial or some information if you can trick me Thank you!!

[FalconPunch]

Hello MaxPower,
Thanks again for sharing this method. I tested on my laptop but it is high risks, high reward solution . It was a lenovo x380. Of 50 tries on shorting LPC_AD 0 to GND, I managed to get to 2 times in the bios. On the first time, i cleared the Supervisor password and cleared the security ; I have done Ctrl+Alt+Del to exit from bios ; Upo rebooting the bios password was still there. So i managed to get bios a second time. but this time laptop froze when i was redoing clearing supervisor password; It shuts downs ; upon powering on, There was no display not even Lenovo Logo : I think i bricked it ; Should i get a random bios file for Lenovo x380 on the forum to flash it on the pc ? Thanks

[Maxpower3]

I could use it to unlock a Lenovo T14s Gen2 AMD built in February 2022, otherwise it would be electronic waste.
Especially since you're making it all available for free.
Chapeau! Chapeau!

I confirm it worked for me too
Ttiming a little different.
Short after F1 and timing a little long.
it happened, just clean pwd even no security chip

X13 Gen2 AMD Nm-d442 IT5679VG
with last bios 1.32 with a weird version of EC. 1.08.

Well there is 1.33 that came out today