LENOVO BIOS AUTO-PATCHER for Supervisor Password Removal

[Markus1741]

Re: LENOVO BIOS AUTO-PATCHER for Supervisor Password Removal

When I flash the original bios, the laptop turns on

Hello your two BIOS chips look very good not damaged nearby.

I cleaned the ME region is the 8.4 MB file.

Only the 4.2 MB can be patched with the Auto-Patcher.

Much luck ...

[Alex_over]

Re: LENOVO BIOS AUTO-PATCHER for Supervisor Password Removal

Thanks friend, I will try to flash it

[volinakis]

Re: LENOVO BIOS AUTO-PATCHER for Supervisor Password Removal

Can someone remove the bios password

try this file and follow steps described in #1

[ HOW TO USE THE PATCH ]
STEP 1: Flash and replace current BIOS with the generated patch file
STEP 2: Boot the machine
STEP 3: Press ENTER/F1/etc. to enter BIOS settings
STEP 4: Enter any character when asked for Supervisor Password
STEP 5: Press enter when it shows Hardware ID
STEP 6: Press space bar 2x when asked
STEP 7: Turn off machine
STEP 8: Restore original BIOS
STEP 9: Reset BIOS settings to factory default

[ NOTES ]
When booting the patched BIOS you might have to:
- Hold the anti-tamper switch down the whole time (use tape)
- Remove the hard disk or replace it with a locked one

[volinakis]

Re: LENOVO BIOS AUTO-PATCHER for Supervisor Password Removal

please help me to remove bios password
MY laptop is lenovo E490 fe490/fe590/fe480 nm-b911
rev: 2.0

try this file and follow steps described in #1

[ HOW TO USE THE PATCH ]
STEP 1: Flash and replace current BIOS with the generated patch file
STEP 2: Boot the machine
STEP 3: Press ENTER/F1/etc. to enter BIOS settings
STEP 4: Enter any character when asked for Supervisor Password
STEP 5: Press enter when it shows Hardware ID
STEP 6: Press space bar 2x when asked
STEP 7: Turn off machine
STEP 8: Restore original BIOS
STEP 9: Reset BIOS settings to factory default

[ NOTES ]
When booting the patched BIOS you might have to:
- Hold the anti-tamper switch down the whole time (use tape)
- Remove the hard disk or replace it with a locked one

[ArcMak]

Worked for me!

Thank you Knucklegrumble, I just followed EXACTLY what you described and fixed my poor Lenovo P51.

For the community reference I used a CH341A with NeoProgrammer 2.1.0.19, and a IC clamp (didn't remove the IC from the board as recommended in some articles).


Mak

[buokhalid]

Re: LENOVO BIOS AUTO-PATCHER for Supervisor Password Removal

try this file and follow steps described in #1

[ HOW TO USE THE PATCH ]
STEP 1: Flash and replace current BIOS with the generated patch file
STEP 2: Boot the machine
STEP 3: Press ENTER/F1/etc. to enter BIOS settings
STEP 4: Enter any character when asked for Supervisor Password
STEP 5: Press enter when it shows Hardware ID
STEP 6: Press space bar 2x when asked
STEP 7: Turn off machine
STEP 8: Restore original BIOS
STEP 9: Reset BIOS settings to factory default

[ NOTES ]
When booting the patched BIOS you might have to:
- Hold the anti-tamper switch down the whole time (use tape)
- Remove the hard disk or replace it with a locked one

Thanks for your efforts
My laptop now is not posting at all
Just power led with blank screen
I don't know what happened
Tried to reflash the bios the same result
Even tried the original bios file which was created before it didn't work.

Can the bios chip burned out?
Is it possible?
It is still accepting flash and the programmer still detecting the chip.


Any idea or suggestions? Plz ….

[volinakis]

Re: LENOVO BIOS AUTO-PATCHER for Supervisor Password Removal

Thanks for your efforts
My laptop now is not posting at all
Just power led with blank screen
I don't know what happened
Tried to reflash the bios the same result
Even tried the original bios file which was created before it didn't work.

Can the bios chip burned out?
Is it possible?
It is still accepting flash and the programmer still detecting the chip.


Any idea or suggestions? Plz ….

Check if you didn't remove any component around bios chip by mistake while soldering/desoldering bios chip. Leave laptop on for a long time, from my experience it take between 1 to 2 mins to apply new settings from bios, you'll see keyboard leds flashing few times. I removed SVP from E490 with same method I created your patched bios, it should work.

[buokhalid]

Re: LENOVO BIOS AUTO-PATCHER for Supervisor Password Removal

Check if you didn't remove any component around bios chip by mistake while soldering/desoldering bios chip. Leave laptop on for a long time, from my experience it take between 1 to 2 mins to apply new settings from bios, you'll see keyboard leds flashing few times. I removed SVP from E490 with same method I created your patched bios, it should work.

I didn't desolder the chip
I used the clip with ch341a programmer.

I believe if the chip burned it will not accept programming or even the programmer detect the chip.

It is accepting the flash and verify it successfully with no issue.


Anyway i will check the area around the chip as you said. And will update you back.


Thanks bro

[Alex_over]

Re: LENOVO BIOS AUTO-PATCHER for Supervisor Password Removal

Hello your two BIOS chips look very good not damaged nearby.

I cleaned the ME region is the 8.4 MB file.

Only the 4.2 MB can be patched with the Auto-Patcher.

Much luck ...

I recorded the bios of the laptop, there is no image, and it beeps 5 times

[volinakis]

Re: LENOVO BIOS AUTO-PATCHER for Supervisor Password Removal

I didn’t desolder the chip
I used the clip with ch341a programmer.

I believe if the chip burned it will not accept programming or even the programmer detect the chip.

It is accepting the flash and verify it successfully with no issue.


Anyway i will check the area around the chip as you said. And will update you back.


Thanks bro

I had some troubles with Macronix chipsets, even programmer detected it and wrote it with no errors laptop didn't start. I replaced with Winbond and laptop started.
I see that your laptop can use both chipsets, try change it with W25Q128 if you have MX25L128
Also I gave up using clips because it can damage components placed near bios chipset and always desolder bios chipsets, there are some "pogo pins" i saw some users here use it and it's better than clips.

[buokhalid]

Re: LENOVO BIOS AUTO-PATCHER for Supervisor Password Removal

try this file and follow steps described in #1

[ HOW TO USE THE PATCH ]
STEP 1: Flash and replace current BIOS with the generated patch file
STEP 2: Boot the machine
STEP 3: Press ENTER/F1/etc. to enter BIOS settings
STEP 4: Enter any character when asked for Supervisor Password
STEP 5: Press enter when it shows Hardware ID
STEP 6: Press space bar 2x when asked
STEP 7: Turn off machine
STEP 8: Restore original BIOS
STEP 9: Reset BIOS settings to factory default

[ NOTES ]
When booting the patched BIOS you might have to:
- Hold the anti-tamper switch down the whole time (use tape)
- Remove the hard disk or replace it with a locked one

Appreciated
will try it after replacing the chip

[mregeling]

Re: LENOVO BIOS AUTO-PATCHER for Supervisor Password Removal

Hello, can someone help me remove the password of my Lenovo X270 ?
Thank you very much !

[Markus1741]

Re: LENOVO BIOS AUTO-PATCHER for Supervisor Password Removal

Hello, can someone help me remove the password of my Lenovo X270 ?
Thank you very much !

Hello try this patch ....

[Mettbroetchen]

Re: LENOVO BIOS AUTO-PATCHER for Supervisor Password Removal

patcher works fine for me
T460s
Python 3.11
Programmer 341a mini black
Softw : CH341a Programmer 2.2.0.10
thanks to @Knucklegrumble

[kotlety]

Re: LENOVO BIOS AUTO-PATCHER for Supervisor Password Removal

Hi, just wanted to say big thanks for the script and guide.

I succesfully managed to remove the Supervisor BIOS password on my T480.
For future reference, my machine is T480, type 20L6-SD8Q0M, June 2019, BIOS version 1.24.

Keep in mind you need to desolder the U49 chip (W25Q128JVS), it's located roughly between the RAM slot and where the discrete GPU would be. At first I made a mistake and desoldered U15 (near the CMOS battery) and was wondering why the patcher wouldn't work hehe.
I used RaspberryPi 4B and flashrom to read and write the binaries, but ran the patcher script on my Win 10 laptop.

Anyway, thanks again!

[olegi]

Re: LENOVO BIOS AUTO-PATCHER for Supervisor Password Removal

Hi everyone i have Lenovo x1 Yoga 20LE bios locked.Can someone help me remove the password.Regards

[Markus1741]

Re: LENOVO BIOS AUTO-PATCHER for Supervisor Password Removal

Hi everyone i have Lenovo x1 Yoga 20LE bios locked.Can someone help me remove the password.Regards

Try ...

[olegi]

Re: LENOVO BIOS AUTO-PATCHER for Supervisor Password Removal

Thank you Markus1741. All OK

[Othmane4you]

Re: LENOVO BIOS AUTO-PATCHER for Supervisor Password Removal

Hi everyone
i have a Thinkpad yoga 15 typ 20DQS00A00 with SVP
Chip Winbond W25Q64FVS
this is a verified backup i would like to patch it

[Markus1741]

Re: LENOVO BIOS AUTO-PATCHER for Supervisor Password Removal

Hi everyone
i have a Thinkpad yoga 15 typ 20DQS00A00 with SVP
Chip Winbond W25Q64FVS
this is a verified backup i would like to patch it

Hello try it .....