LENOVO BIOS AUTO-PATCHER for Supervisor Password Removal

[peste]

Hi all,

I'm having trouble deleting the SVP on an x280
After flashing the patched file, I get a black screen and a musical note.
The original bin dump is uncorrupted and works after flashing it.
How can I fix the patched file so it works to remove the SVP?

Thanks for your help

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

[EB999999]

Hi all,

I'm having trouble deleting the SVP on my laptop.
EDIT:
[It's an x280 20KES2SN00; i5-8350U 8GB 01LX681
SN: PC16FNZB 19/07
IC: W25Q128JVSQ]

After flashing the patched file, I get a black screen and a musical note.
The original bin dump is uncorrupted and works after flashing it.

How can I fix the patched file so it works to remove the SVP?

Thanks for your help

[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..

[mohammedsf]

Hi, please help me patching this bios to remove the password..

MB: NM-B521 Rev 1.0
Machine type: 20KE
SN: PC-0YC2T3

[Stachujones]

Done, fix ot by flashing first clean me bios, than reading it back, doing autopatch, laptop booted just fine, and lastly writing original file from laptop
Maybe this will help someone

[Stachujones]

try

Still the same behavior, no display and the same sound error

[danito]

Hello i have a problem using autopatcher in ThinkPad X280, after writing patched file laptop is beeping code 010288 and no display, tried on original bios from 2020 and after update on newest bios from 2025
after writing original bios laptop is starting fine again
Laptop: ThinkPad X280
MB: NM-B521
SN: PC0YZ1FW 18/11
BIOS IC 25Q128JVSQ
Could anyone help me with removing supervisor password, thanks in advance

try

[Stachujones]

Hello i have a problem using autopatcher in ThinkPad X280, after writing patched file laptop is beeping code 010288 and no display, tried on original bios from 2020 and after update on newest bios from 2025
after writing original bios laptop is starting fine again
Laptop: ThinkPad X280
MB: NM-B521
SN: PC0YZ1FW 18/11
BIOS IC 25Q128JVSQ
Could anyone help me with removing supervisor password, thanks in advance

[Stefan Steff]

Yes there is a hope...read here:
https://www.badcaps.net/forum/troubl...ss#post3237235

[abrnb]

No, it will not work.
The autopatcher works on MBs with CPU version until 8-th gen.

Hi
Thanks for you reply, is there anyway to remove supervisor password for latest gen for lenovo, if yes mean please suggest me Thanks in advance brother

[Stefan Steff]

Hi
if cpu is i5 13th, will this patcher work brother?

No, it will not work.
The autopatcher works on MBs with CPU version until 8-th gen.

[abrnb]

If your CPU is i7-8650U then the patcher doesn't work...

Hi
if cpu is i5 13th, will this patcher work brother?

[Polar Bear]

method 1 should work
Method 2 doesn't work. Password is in EC. Can't decrypt. It's not registered in the BIOS.
Method 3: You must use a USB keyboard because the shunt disables the keyboard. Watch the other videos to understand, the timing of the shunt is important
f1 is pressed before the shunt.

Tried method 1 again and again -- still after flashing original BIOS on boot a password is asked.
Tried method 3 again and again -- so far no success in right timing.

Note on method 3:
Tried to shunt after backlight on (no Lenovo logo, probably in BIOS set fastboot) with tapping F1 key - the boot process either "paused" or might give an error and reboot, or might play melody (couple of times), or password input requested. Watched YouTube videos with the procedure, I see that success shunt often happens on second-third-fourth try but in my case no luck so far.

Is there any setting in BIOS which could cause of such behavour?

Polar Bear

[CesrDroid]

serial number, type etc ... respect rules please

Model: ThinkPad T480
Serial Number: PF-1NSAAJ
Motherboard Model: ET480 NM-B501 - rEV. 1,0 - 2018-03.03

Issue:
I am unable to remove the BIOS supervisor password. I have tried all recommended procedures, including the Lenovo Auto‑Patcher, but I am still locked out.

What I have tried:

Used Flashrom and a CH341A SPI programmer to read and write the BIOS chip.

Worked from both Ubuntu and Windows 11 operating systems during the process.

Flashed both 8MB and 4MB dumps (attached below).

Ran the latest Lenovo Auto-Patcher script on my BIOS dumps.

Flashed the patched BIOS back to the chip.

I also tried the original BIOS dump for recovery.

Current symptoms:

With patched BIOS: The laptop does not boot and emits a continuous siren/alarm sound.

With original BIOS: The laptop boots but asks for the supervisor password (which I do not have).


Additional info:

The board label says MN-B501.


Thank you in advance for your help! Any guidance or clean/unlocked BIOS would be greatly appreciated.

[Maxpower3]

Method #1: Lenovo autopatcher

Method #2: Supervisor password decryption

Method #3: JLPC ADC shorting to GND

method 1 should work
Method 2 doesn't work. Password is in EC. Can't decrypt. It's not registered in the BIOS.
Method 3: You must use a USB keyboard because the shunt disables the keyboard. Watch the other videos to understand, the timing of the shunt is important
f1 is pressed before the shunt.

[Maxpower3]

I just saw that I uploaded the file, but it's 6MB. The original BIOS is 16MB, but when I run the autopatcher, it doesn't work and the siren is activated.

serial number, type etc ... respect rules please

[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..

[CesrDroid]

Can someone help me? When I use the autopatcher, the computer starts beeping and does not start the BIOS.

I just saw that I uploaded the file, but it's 6MB. The original BIOS is 16MB, but when I run the autopatcher, it doesn't work and the siren is activated.

[Polar Bear]

Just bought a CH341A programmer for Thinkpad T480s, IC chip is 25Q128JVSQ,

I used the AsProgrammer 2.1.0 .13 Version, But I cannot find this chip model in CH341A chip list, there are only 25Q128BV and 25Q128FV.
Can someone help how to handle this IC 25Q128JVSQ?

Thanks very much.

Hi,

you can use any of 25Q128BV or 25Q128FV they share same chip ID as your IC 25Q128JVSQ (see page 21).

Or you can add your chip into list of supported chips yourself. Just edit file chiplist.xml,

find line

<W25Q128FV id="EF4018" page="256" size="16777216"/>

add after it

<W25Q128JV id="EF4018" page="256" size="16777216"/>

save the file.

Now try identify chip in AsProgrammer and you will see your chip in the list.

Note: you can download more recent AsProgrammer 3.7 or AsProgrammer 2.1.2

Polar Bear

[Polar Bear]

Hello Knucklegrumble,

per your suggestion I would like to report unsuccessful case with Lenovo T480s. I followed your procedure and everything was going according plan except that after restoring original BIOS and reboot laptop asks for a password.

I've made a post for my case with a details. I would appreciate if you take a look at it.

Thank you for your work and help

Polar Bear