I created a supervisor password for my laptop a while back and I forgot it. It can't be reset by resetting CMOS. Can I extract it from a BIOS dump or through another method without a bios/eeprom programmer?
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Sorry for that.
Laptop: Lenovo Legion Y540-15IRH
Model: 81SX
S/N: PF1YVPN7
MTM: 81SX005TAD
Motherboard model: Lenovo LNVNB161216
Version: SD0K11763
Chipset: Intel HM370
BIOS version: Lenovo (but bios update utility says Insyde H20) BHCN44WW
Can the password be reset/extracted? If so, and if you don't mind, can you tell me how you do it?Comment
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Edit: full bios image instead of bios region onlyComment
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Sorry for the noob question, but how can I flash without a programmer? FPT says something about range protection registers. Can I flash in dos from a usb flash drive? (Keeping in mind I'm in efi mode with secure boot enabled and can't change that because I don't have the password.)
I was also reading on winraid and found a tool called RU Shell which, as I understand, allows one to directly modify the bios on board. Could it be useful here?Comment
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Here's a thought. I was fiddling around and I was able to disable FPRR and BIOS lock through H2OUVE by reading the variables from IFR extractor. I also found the prompt asking for the supervisor password. However, the offset doesn't even exist in H2OUVE. Can this be exploited in some way?
I can flash the image you sent me but I'm worried about bricking especially since I don't have a programmer.Comment
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Wow, how were you able to do this? I was under impression the password is stored in EC.
I would appreciate it greatly if you could take a look at my Y540 15IRH dump, others have done so and concluded that the fix is more complex. Has BIOS administrator password applied (boots into Windows, just cannot configure BIOS) and previous owner has forgotten it, much to my frustration.
S/N: PF1X715
Board: NM-C221 Rev 2.0
Can provide any other details if necessaryComment
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привет ребята купил ноутбук в нерабочем состоянии для восстановления , проблема оказалась в чипе RTX3060 , заменив высветился код 43 первым делом хочется использовать Mats Mods для проверки чипов памяти , но вот проблема BIOS под паролем ,помогите снять пароль ,програмная часть не самая сильная у меня . Дамп снят SVOD 4 платформа Nm-c211 rev 2.0 (legion y540 15IRH)
Hi guys, I bought a non-working laptop for recovery, the problem turned out to be in the RTX3060 chip, after replacing it, code 43 appeared, the first thing I want to do is use Mats Mods to check the memory chips, but here is the problem with the BIOS password, help me remove the password, the software part is not the strongest for me. The dump was taken SVOD 4 platform Nm-c211 rev 2.0 (legion y540 15IRH)
in English please..Comment
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Due to a lack of donations, server free space at a critical level, and possible closure of Bios Requests all donations are welcome, click:
>>>>> https://www.badcaps.net/index.php?pageid=donate1 <<<<<
Every donation made will go towards server fees and maintenance costs.Comment
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Hi guys, I bought a non-working laptop for recovery, the problem turned out to be in the RTX3060 chip, after replacing it, code 43 appeared, the first thing I want to do is use Mats Mods to check the memory chips, but there is a problem with the BIOS password, help remove the password, the software part is not the strongest for me. Dump taken SVOD 4 platform Nm-c211 rev 2.0 (legion y540 15IRH)
Hi guys, I bought a non-working laptop for recovery, the problem turned out to be in the RTX3060 chip, after replacing it, code 43 appeared, the first thing I want to do is use Mats Mods to check the memory chips, but there is a problem with the BIOS password, help remove the password, the software part is not the strongest for me. Dump taken SVOD 4 platform Nm-c211 rev 2.0 (legion y540 15IRH)
S/N PF22SBQW
TYPE 81SX
MTM 81SX016GPB
FACTORY ID JVHFC1
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Hi, can someone help me please with the removal of the bios password of this dump.
Someone desoldered the bios chip, tried several "methods" but with no luck, and he gave me the dump to try to search some help.
For now he deleted more things and bios password is gone but laptop doesn't show serial, model etc.
Also, I updated bios to latest version, when he will write the dump again without password, it should be better to put back the old version that was orignally or doesn't matter? Because from what I've read this laptop has 3 bios chips, don't know if has... -
Sublect line continuation: ... Jaguar IDS PC aka Panasonic
>Read BIOS guides, methods, resources and tools
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Ack
>Try the method at BIOS guides, methods, resources and tools before requesting help
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Ack
>Explain you were not able to succeed with the methods at BIOS guides, methods, resources and tools
>
python ./main.py "/mnt/c/temp/205605f9e1b60403a41787efeffe9cad-flas_maybe5.BIN" --output-dir "/mnt/c/temp/205605f9e1b60403a41787efeffe9cad-flas_maybe5.txt"
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HI,
I have a problem with the BIOS password for the HP ProOne 440 G9 (AIO). Once I want to enter the BIOS a password is requested (see screenshot) and I am a little unsure if it would be smart to try a wrong password three times (as some people mentioned online) to get a code - I don't want to block the whole system (not sure if that could happen?!). According to other sources a reset is (maybe) not even possible for this model.
Any ideas if this may work? Hope someone could help.
Thanks for your time!
Chris10-29-2025, 01:28 PM -
Hello
I removed the BIOS password thanks to the help of one of the friends of this forum.
https://www.badcaps.net/forum/troubl...61#post3637661
The batch from which the password was removed works correctly but... after some time, the BIOS password is set again, I reprogrammed the batch with the removed password, it's ok, there is no password, I set my password, ok, I can enter the BIOS with my password but... -
Good day. I apologize if I posted this in the wrong topic. I saw somebody selling a Thinkpad E495 with a Ryzen 3500U CPU near me. In the pictures the laptop is running windows 10. I contacted the seller and asked a few questions about upgradability and if it has a bios password on it. He confirmed it has a bios password. I searched through the forum, I found a guide regarding removing the bios password using the autopatcher, I also found a thread with the e495 where people requested help with unlocking the bios password.
I have a few questions:- If I would buy this laptop and have
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