IdeaPad Slim 3 15IAH8 bios

[airblade]

need help, remove bios password

IdeaPad Slim 3 15IAH8
SN PF4DH176

[shiyab]

need help, remove bios password

IdeaPad Slim 3 15IAH8
SN PF4DH176

hi try both file try and feedback

[ak47www1]

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:

1. I used a CH341A programmer with AsProgrammer to create a full backup of the BIOS (original_bios.bin).
2. I tried using a Lenovo auto-patcher script, but it crashes (Python exits unexpectedly) when I try to load my dump file.
3. 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?

1. Is there a known working patcher for my specific model?
2. Could someone experienced take a look at my attached dump and help patch it, or guide me through the manual process?
3. Any advice on why the auto-patcher might be crashing?

Thank you in advance for your time and help!

[SMDFlea]

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

**Important:** The forum doesn't allow .bin files, so I renamed it to .txt
Please rename the file from "DUMP_DOINSTAL.txt" back to "DUMP_DOINSTAL.bin" before using.

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.

[ak47www1]

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.

Thanks, I fixed everything.

[computerbucket]

Please help corrupted bios after i update, no display..
SN: PF4JRFBT

TY...

[peste]

Please help corrupted bios after i update, no display..
SN: PF4JRFBT

TY...

bios extracted from Lenovo website update for IdeaPad Slim 3 15IAH8
DMI 42000 - 43FFF in 16MB bios

[Recoemano]

Good Morning need Bios for IdeaPad Slim 3 15IAH8 - Type 83ER
Serial Number: PF4SM1DX
I dont have BIOS dump

[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..

[peste]

Good Morning need Bios for IdeaPad Slim 3 15IAH8 - Type 83ER
Serial Number: PF4SM1DX
I dont have BIOS dump

you have everything you need at post #7...

[Recoemano]

Thanks

[Recoemano]

The light keeps blinking, it turns on but there's still no image

[peste]

The light keeps blinking, it turns on but there's still no image

The laptop probably has other problems...have you checked the voltages on the coils??

[Recoemano]

No, thanks i will check

[antolin25]

Hello, I have this device that turns on but displays no image; thank you very much for your help.
I already tried the files from post #7, but the device won't turn on.
Lenovo 3 15IAH8
MB: NM-091 Rev: 1.0
MTM: 83ER002RLM
S/N: PF4T6HBS

[m1ch43lzm]

Hello, I have this device that turns on but displays no image; thank you very much for your help.
I already tried the files from post #7, but the device won't turn on.
Lenovo 3 15IAH8
MB: NM-091 Rev: 1.0
MTM: 83ER002RLM
S/N: PF4T6HBS

Either the motherboard or bottom cover were replaced, you have a motherboard for IdeaPad Slim 3 15IAN8 (NM-E901), possibly with i3-N305 CPU (S/N in BIOS PF5CF2AF, MTM 82XB004CLM) but the S/N PF4T6HBS you posted is from IdeaPad Slim 3 15IAH8 with i5-12450H CPU (NM-F331)

Which CPU does it have?

BIOS backup belongs to a IdeaPad Slim 3 15IAN8..
Try post 22 from IdeaPad Slim 3 15IAN8 topic, if you have i3-N305 CPU and NVME slot (not soldered UFS storage) https://www.badcaps.net/forum/troubl...31#post3817831

[antolin25]

Either the motherboard or bottom cover were replaced, you have a motherboard for IdeaPad Slim 3 15IAN8 (NM-E901), possibly with i3-N305 CPU (S/N in BIOS PF5CF2AF, MTM 82XB004CLM) but the S/N PF4T6HBS you posted is from IdeaPad Slim 3 15IAH8 with i5-12450H CPU (NM-F331)

Which CPU does it have?

BIOS backup belongs to a IdeaPad Slim 3 15IAN8..
Try post 22 from IdeaPad Slim 3 15IAN8 topic, if you have i3-N305 CPU and NVME slot (not soldered UFS storage) https://www.badcaps.net/forum/troubl...31#post3817831

Hi, you're absolutely right; this unit was sent in for warranty service, and it looks like the motherboard was replaced. It has an i3-N305 CPU.
Thank you very much for your professionalism and for not taking everything at face value—truly, thank you.

[antolin25]

Either the motherboard or bottom cover were replaced, you have a motherboard for IdeaPad Slim 3 15IAN8 (NM-E901), possibly with i3-N305 CPU (S/N in BIOS PF5CF2AF, MTM 82XB004CLM) but the S/N PF4T6HBS you posted is from IdeaPad Slim 3 15IAH8 with i5-12450H CPU (NM-F331)

Which CPU does it have?

BIOS backup belongs to a IdeaPad Slim 3 15IAN8..
Try post 22 from IdeaPad Slim 3 15IAN8 topic, if you have i3-N305 CPU and NVME slot (not soldered UFS storage) https://www.badcaps.net/forum/troubl...31#post3817831

Hi, I tried the solution from post #22 you recommended, but it didn't work; the device gets stuck drawing 69 mA and stays there. Do you have any other recommendations? It’s an i3-N305 CPU with an NVMe slot. Thanks a lot.

[m1ch43lzm]

Hi, I tried the solution from post #22 you recommended, but it didn't work; the device gets stuck drawing 69 mA and stays there. Do you have any other recommendations? It’s an i3-N305 CPU with an NVMe slot. Thanks a lot.

Try, flash both 8MB and 16MB chips