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Old 07-17-2018, 05:57 AM   #1
chipsetrepair
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Default lenovo t440p bios password

Good day all,

Im looking for Lenovo T440P bios dump, currently the laptop is locked with bios password. Im attaching my working locked bios dump here.

Thanks in advance

motherboard
VILT2 NM-A131 REV 1.0
Attached Files
File Type: rar 8mb lenovo ori.rar (2.83 MB, 677 views)
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Old 12-31-2018, 11:09 AM   #2
littlelizard
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Default Lenovo Thinkpad T440P + Unlock

This bios is currently supervisor locked.

I searched forums before posting and did not find a download. I found one post on the T440p and one for the t440s.

I would also like to white list so I can upgrade wifi card and lcd panel.


Hoping someone can help out.
Attached Files
File Type: zip mydumpsonly.zip (5.85 MB, 226 views)
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Old 01-02-2019, 11:51 PM   #3
littlelizard
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Default Re: Lenovo Thinkpad T440P + Unlock

Did I post I the correct location or is there anything wrong with my post?
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Old 01-03-2019, 01:27 AM   #4
mahmoodjavan
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Default Re: Lenovo Thinkpad T440P + Unlock

Quote:
Originally Posted by littlelizard View Post
Did I post I the correct location or is there anything wrong with my post?
backup
Attached Files
File Type: rar Lenovo THINKPAD T440P NM-A131 backup BIOS.rar (3.20 MB, 510 views)
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Old 01-10-2019, 04:24 PM   #5
littlelizard
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Default Re: Lenovo Thinkpad T440P + Unlock

Ok I ended up paying someone to get it unlocked. However, I would like to learn how to implant the dxe driver and what will the above posted file accomplish. Also for some reason he told me not to white list or open the advanced menu in the bios as its risky and could cause damage. Is this true what is the risk in getting things whitelisted and opening the advanced menu?
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Old 08-22-2019, 11:55 PM   #6
Johnny.Bravo
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Default Thinkpad t440p - Restoring locked bios

Hello guys, I hope someone can help me to restore the locked bios on my Lenovo t440p.

I wanted to remove the supervisor password and since I have done this with another laptop in the past I have not researched enough for t440p and I flashed a new bios using raspberry pi and soic-8 clip. I missed the part with the password for this laptop being stored in MEC1633.

What I have done for both bios chips (w25q32 and w25q64):
1. read the bios chip couple of times to make sure the connection is stable
2. write new bios on the chip

The new bios didn't work. It asks me for a password and I can't even enter the bios, which was possible before, altough many options wasn't available.

After that I flashed the old dump files on the chips hoping to restore the initial state, where the bios was locked, but the laptop was working. Now the laptop won't boot at all.

Does anyone know, why the old bios files don't work anymore and can help restore the old bios?
Attached Files
File Type: rar locked-bios-files.rar (5.64 MB, 214 views)

Last edited by Johnny.Bravo; 08-22-2019 at 11:58 PM..
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Old 08-23-2019, 06:14 AM   #7
imranromi
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Default Re: Thinkpad t440p - Restoring locked bios

Quote:
Originally Posted by Johnny.Bravo View Post
Hello guys, I hope someone can help me to restore the locked bios on my Lenovo t440p.

I wanted to remove the supervisor password and since I have done this with another laptop in the past I have not researched enough for t440p and I flashed a new bios using raspberry pi and soic-8 clip. I missed the part with the password for this laptop being stored in MEC1633.

What I have done for both bios chips (w25q32 and w25q64):
1. read the bios chip couple of times to make sure the connection is stable
2. write new bios on the chip

The new bios didn't work. It asks me for a password and I can't even enter the bios, which was possible before, altough many options wasn't available.

After that I flashed the old dump files on the chips hoping to restore the initial state, where the bios was locked, but the laptop was working. Now the laptop won't boot at all.

Does anyone know, why the old bios files don't work anymore and can help restore the old bios?
Password store in MEC1633L not bios you need to programmer Mec... then remove
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Old 08-23-2019, 11:08 AM   #8
Johnny.Bravo
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Default Re: Thinkpad t440p - Restoring locked bios

Quote:
Originally Posted by imranromi View Post
Password store in MEC1633L not bios you need to programmer Mec... then remove
thank you for your answer. I don't want to remove the password anymore. Programming the mec1633 would not be as easy as flashing new bios, so it is not worthy for me. I want to flash the backup files of the locked bios, but when I do this, the laptop doesn't boot. Any clue, why it doesn't boot?
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Old 08-23-2019, 11:11 AM   #9
imranromi
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Default Re: Thinkpad t440p - Restoring locked bios

You change bios chip?
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Old 08-23-2019, 12:38 PM   #10
Johnny.Bravo
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Default Re: Thinkpad t440p - Restoring locked bios

Quote:
Originally Posted by imranromi View Post
You change bios chip?
No, i used soic-8 clip to read and write, it is the original chip, which is soldered on the board.
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Old 10-07-2019, 07:16 AM   #11
ebinmanuval
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Default Re: Thinkpad t440p - Restoring locked bios

Did you find any solution for this problem ?
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Old 10-07-2019, 07:39 AM   #12
kiknusko
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Default Re: Thinkpad t440p - Restoring locked bios

Quote:
Originally Posted by ebinmanuval View Post
Did you find any solution for this problem ?
If your have t440 i Can unlock IT for you send me your BIOS dump
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Old 06-05-2020, 05:21 AM   #13
shafqat ali
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Default Re: Thinkpad t440p - Restoring locked bios

hi sr have lenovo t470 bios password how to remve send me pached file?
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Old 06-05-2020, 05:42 AM   #14
bachir2004
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Default Re: Thinkpad t440p - Restoring locked bios

Quote:
Originally Posted by shafqat ali View Post
hi sr have lenovo t470 bios password how to remve send me pached file?
https://www.badcaps.net/forum/showth...=65996&page=41
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Old 08-27-2019, 02:10 AM   #15
anwarm
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Default Re: Lenovo T440P bios locked

i need 4mb. t440p bios
pls help me
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Old 09-01-2019, 08:46 PM   #16
Mulong2019
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Default Re: Lenovo T440P bios locked

Here i share 8mb and 4mb file report if it is working
Attached Files
File Type: rar t440p_u49 4m.rar (2.51 MB, 970 views)
File Type: rar t440p_u113 8m.rar (2.81 MB, 946 views)
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Old 05-31-2020, 04:43 AM   #17
Bonzas
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Default Re: Lenovo T440P bios locked

Quote:
Originally Posted by Mulong2019 View Post
Here i share 8mb and 4mb file report if it is working
This File Not Working on my board sir, no display
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Old 01-14-2021, 04:40 AM   #18
nabilgo
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Default Re: Lenovo T440P bios locked

Quote:
Originally Posted by Mulong2019 View Post
Here i share 8mb and 4mb file report if it is working
it work perfect on t440p
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Old 01-14-2021, 07:59 AM   #19
Deby
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Default Re: Lenovo T440P bios locked

Quote:
Originally Posted by Mulong2019 View Post
Here i share 8mb and 4mb file report if it is working
It works on T440p! Thanks!
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Old 01-27-2021, 11:20 AM   #20
Andyservo
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Default Re: Lenovo T440P bios locked

Quote:
Originally Posted by Mulong2019 View Post
Here i share 8mb and 4mb file report if it is working
Thank you...
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