need help, remove bios password
IdeaPad Slim 3 15IAH8
SN PF4DH176
IdeaPad Slim 3 15IAH8
SN PF4DH176
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I am trying to remove a supervisor password from a Lenovo laptop by patching the BIOS dump. I have successfully read the SPI flash chip (Winbond W25Q128JV) using a CH341A programmer, but I am having trouble modifying the dump correctly.
My details:- Laptop Model: 83ER Lenovo IdeaPad Slim 3 15IAH8; S/n PF3SV3T5
- BIOS Chip: Winbond W25Q128JV
- Programmer: CH341A
- Problem: I cannot boot because of a forgotten supervisor password.
What I have tried:- I used a CH341A programmer with AsProgrammer to create a full backup of the BIOS (original_bios.bin).
- I tried using a Lenovo auto-patcher script, but it crashes (Python exits unexpectedly) when I try to load my dump file.
- I also tried opening the dump in AMIBCP, but I couldn't find the exact security settings to modify.
I have attached my original BIOS dump to this post.
Could someone please help me?- Is there a known working patcher for my specific model?
- Could someone experienced take a look at my attached dump and help patch it, or guide me through the manual process?
- Any advice on why the auto-patcher might be crashing?
Thank you in advance for your time and help!
Attached Filesif you find these attachements useful please consider making a small donation to the site
Last edited by ak47www1; Today, 07:09 AM.Comment
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Please read https://www.badcaps.net/forum/troubl...before-posting and post the laptop serial number. Files can be posted in a zip or rar archive.Comment
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LENOVO IDEAPAD SLIM 3 I4IAH8
SN: PF4J8CRZ
Hey mates,
I have a problem with my IdeaPad 3 Slim.
When I turn it on, the ESC key, Caps Lock, power button, and power control lights stay lit, and the screen remains black.
I can't press the Caps Lock key. The correct current is being applied to all coils.
I tested the BIOS files from post #23, but without success.
I'm attaching both original BIOS files. Could someone check if there's an error?
By the way, the 1.8 V coil is receiving the full 1.8 V as soon as the power adapter is plugged... -
Sublect line continuation: ... Jaguar IDS PC aka Panasonic
>Read BIOS guides, methods, resources and tools
>
Ack
>Try the method at BIOS guides, methods, resources and tools before requesting help
>
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 wondering if anyone can help with fixing my bios. Currently experiencing power on but flashing power led.
I'll attach the old one and the link the model from Lenovo Website and what I got extracted from that exe file. I removed the excess lines and will attach that one too but flashing it didn't seem to work.
https://support.lenovo.com/us/en/dow...ator-7-15imh05
Lenovo IdeaPad Slim 7 15IMH05
SN: LR0ECFTE
Board Model: LS5 DA0LS5MBAJ0 REV : J... -
Please may I ask someone wise to unlock BIOS password for
Lenovo IdeaPad Slim 3 16IAH8
SN: PF4M1G99
or post clean BIOS for this laptop?
Many thanks in advance!...08-20-2025, 03:24 AM -
Hi,
I want to remove the Bios Password of my Lenovo IdeaPad U330p with the Lenovo autopatcher. I have the CH341A Black and I'm using NeoProgrammer. The Programmer has an LED that indecates when it reads or writes the Chip. When I try to Connect my Programmer to the Bios Chip (Winbond 25Q64FVSIQ) the LED lights up even though I didn't click on Detect botton in NeoProgrammer. If i click on Detect the LED still remains on and NeoProgrammer says "IC not responding".
SN: QB08570065
MB: DA0LZ5MB8D0; REV: D; MODEL J31/N02
Comment