LENOVO BIOS AUTO-PATCHER for Supervisor Password Removal

[mactouch]

PASSWORD REMOVE THINKPAD P15 GEN 1
SN : PF-245326

[SMDFlea]

Maybe the EC bypass will work https://www.badcaps.net/forum/troubl...e4#post3257023

[Xargon1975]

Hello,

I have conducted multiple tests and arrived at the following conclusion, please correct me if I'm mistaken.
After patching the original BIOS on my T480 using Lenovo AutoPatcher, the system emits a melody and fails to initialize the display (black screen).
Reverting to the original BIOS dump allows the laptop to power on, but it remains locked.
Further investigation suggests a CRC32 checksum error in the modified BIOS. After correcting the checksum, the melody no longer occurs, but the system still fails to boot (persistent black screen followed by an automatic shutdown).
Could this issue be related to the TPM module?
What is the correct approach to resolve this?

Many thanks

[yuyuyak]

@Xargon1975
See my post, I spent 3-4 days and many hours to come to that successful solution. Especially if you have a newer bios. T480 pretty popular, bet you can find a dump somewhere, it's only to remove SVP and then you go back to your original bios. Be careful though and get the right one.

[Xargon1975]

@Xargon1975
See my post, I spent 3-4 days and many hours to come to that successful solution. Especially if you have a newer bios. T480 pretty popular, bet you can find a dump somewhere, it's only to remove SVP and then you go back to your original bios. Be careful though and get the right one.

Thank you very much, I'll try to find a BIOS that matches my computer, hope I can do it. I've been trying to unlock it for two weeks now.

[mick_ros]

Hi and thanks for the possibility, to fix a bios.
I got a t580 on my desk and after a lot of reading - sadly at first not about the ch341a and his 5 volt issue, instead i was able to read the bios and 3 dumps of the original file.
I used the software ch341a programmer. I used the software and the autopatcher within windos10 and the patch was succesful but not the writing back to the soic. Later i found out (thanks to your documentation), that the voltage at the data pins is to big and unstable. So i bought the raspberry pico RP2-B2 and pulled the source from pico-serprog, compiled it and can now use the pico to read / write the soic.

The patching with the script was successful and after the flashing and verification, the t580 did 4 reboots with a black screen. As suggested, i taped the 2 tamper buttons.
After the 4 reboots, i got the splashscreen to interupt the start process and tried to enter the bios, which gives me a black screen. Caps Lock / Num Lock is not reacting.
After a cold start, i tried again to enter the bios. This time, i got the "Entering Bios....." Message. The 5 dots cycled one time and in the second try, only 3 dots showing up.
So i disconnected the ssd did a cold start, this time, the "Entering Bios....." Message came back with 5 dots and now it's in this state.

Does anyone has an idea how to continue ?

Product 20LAS1PJ00
SN R90VRFEE

Regards

Mick

[SMDFlea]

flash the original bios back, see what happens

[lrservicios]

Hi all !!

I have a Lenovo X12 detachable laptop with supervisor password, i have svod3 programmer but i read in this forum i can make a short in some EC pins to erase this password, any idea wich pins i need to short or if anyone has tool to erase password from EC reading BIN ??

LENOVO ThinkPad X12 Detachable Gen 1 TYPE NUMBER: 20UV-S2Q100

Thank you in advance

[SMDFlea]

Hi all !!

I have a Lenovo X12 detachable laptop with supervisor password, i have svod3 programmer but i read in this forum i can make a short in some EC pins to erase this password, any idea wich pins i need to short or if anyone has tool to erase password from EC reading BIN ??

LENOVO ThinkPad X12 Detachable Gen 1 TYPE NUMBER: 20UV-S2Q100

Thank you in advance

Post your bios backup and Type the laptop serial number https://www.badcaps.net/forum/troubl...before-posting

[lrservicios]

Post your bios backup and Type the laptop serial number https://www.badcaps.net/forum/troubl...before-posting

Thanks for your response and effort but i suspect this model the password is stored in EC not in the BIOS, i have read that shorting some pins can clear password in EC but i dont know wich pins i need to short in this model, also i read about a floppy disk 1.44 with some LENOVO thinkpad low level utilities can clear this password

[Muhammedshafikc]

S/N R9-0N9053
45 SECONDS LATE DISPLAY

[peste]

S/N R9-0N9053
45 SECONDS LATE DISPLAY

post full name and model, motherboard model, etc.

[PMDev]

May I ask if this can also remove the power-on password? I mean I have a Lenovo ThinkPad T14 gen1 with AMD Ryzen 5 pro and with a power-on password. Can you please tell me how to remove it?

[PMDev]

May I ask if this can also remove the power-on password? I mean I have a Lenovo ThinkPad T14 gen1 with AMD Ryzen 5 pro and with a power-on password. Can you please tell me how to remove it?

Model is: ThinkPad T14 Gen1 with AMD Ryzen CPU, SN: PF-19L6K8, Motherboard: GT4A1 NM-C801 Rev.1.0, BIOS: winbond 250128JWSQ2033