I have tried to patch my bios to remove the supervisor password by unsoldering the bios chip (MX25L12873F)and plugged into ch341b programmer. After patching the bios chip with Lenovo_autopatcher_0.2 and programmed with CH341A Programmer software, I resoldered the bios chip on my T470 (20JN) motherboard and tried to power on the laptop, but unfortunately, now the laptop is not booting, nothing is shown on the display. I tried to program back with the original bios file but of no use, nothing is showing on the display. When I press the power button, the LED on the button does not glow. But when the power adaptor is connected then the LED on the power button glows and flashes for 3 times and than goes off. Can anyone tell me what to do now and how to fix the problem. I'll be very thankful and grateful to him. I have attached the original_BIOS file that i have saved before erasing the chip to program the patched_BIOS.
Lenovo ThinkPad T470
Type - 20JN-S3N70X
S/N - 0YZH67 18/03
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Type the laptop serial number, full name and model, motherboard model, etc.
read the forum rules..https://www.badcaps.net/forum/troubl...before-posting
Read the bios guides, try the lenovo Auto patcher
BIOS guides, methods, resources and tools
https://www.badcaps.net/forum/troubl...rces-and-tools
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Hi
I need to remove password from a ThinkPad T470
Thank you in advanceLeave a comment:
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Hello Guys ,
i need for my T470 a optimised Bios File without Bios password. I tryed the Lenovo Bios Auto-Patcher but i`m not enouth in to this ......
Maybe someone can help me in German language with the Auto Patcher ?
Here are the specs :
Typ : 20HD - 0001GE
Serial : PF-10J7LS 17/11
Have a nice Weekend and Thank you Guys.Leave a comment:
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Hi,
I tried to use the Autopatcher for the T470 BIOS, and I can no longer boot, even when flashing from my original dump.
I have used Neoprogrammer for Windows and IMSProg for Linux. Both times, I was unable to get to POST. I will be including four images from all the backups I took.
I'd appreciate if anyone could at least point me in the right direction to recover my BIOS.
Parts Information
Model: T470 Type 20HE-CT01WW
MB Part No.: CT470 nm-a931 rev 2.0
Serial No.: PF-0RLX6M
PCB Marking: CT470 20B2
Processor: i7-7200U
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I have exactly the same issue as S abdul told.
i extracted the bios used autopatcher and can not go back.
Lenovo T470 20JN-S5VY00
S/N: PF-1C5NNP
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Hi guys,
Can anyone please help me get a clear bios file for the Lenovo T470 20JN-S1592H?
S/N: PF-0W0YCM.
I tried autopatcher however my laptop is not turning on anymore after that, ive tried to go back to the back original file but that doesnt turn on my laptop either.
i think my bios chip is corrupted.
All the help is welcome. Thank you!Leave a comment:
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Hello Guys I have Lenovo T470 Laptop which Power On fan spin then Power Off agin when press power on switch it on fan spin again off
i tried many posted bios but result is same
here is details
Model - T470 Type 20HE-S0S309
MB Part Number - CT470 nm-a931 rev 2.0
Serial No. - PF0YJPTC
PCB Marking CT470 20C2
Processor - SR340 Intel Core i5-7300U
Attaching OLD Main Bios
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Hi, laptop won't power on.
Does anyone have a Type: 20jn-s11j00, SN PF-0ZHCRG bios?
Thank youLeave a comment:
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Read the ME cleaning guides, have a go at doing it yourself https://www.badcaps.net/forum/troubl...22#post1622422Leave a comment:
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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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Hello everyone,
I’m currently working on a dead MSI GP75 Leopard (MS-17E71) motherboard (i7 CPU, NVIDIA GPU) with a no display/no backlight issue initially. After extensive investigation, I’m at a critical stage involving EC firmware, BIOS/ME region interaction, and possible deep corruption. I'm seeking advanced insight from anyone with experience in EC/BIOS sync issues or PCH-level behavior. Here’s a full breakdown:
🧩 Initial Issue- Board powers on (fans spin, keyboard lights up and can be adjusted, caps lock led lights), but no display or backlight
- External display (HDMI) shows
07-24-2025, 02:17 PM -
Hello, I was flashing the bios but now the machine does not come, the battery indicator turns orange when charge is plugged in. As soon as it plugged by charger or battery the power button and escape blinks once then fade out Sometime it blinks 3 timess . With the back case off i can see the fan spins a little then top, but once i press the button it spins a little then stop and repeat for a while until stops. I have attached the bios dump. I had read the chip next to the cmos battery (25q80jvsiq) then i realize that it wasn't the bios. as the bios is next the memory slot. By doing that could...04-17-2024, 09:27 AM -
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I need to reconstruct the bios on my board, based on another bios image form a real board - meaning a bios image containing MAC address, UUID and Serial number. A stock BIOS is not suffiecient, as it is impossible to discover where the MAC, UUID and SerialNumber are stored. Tried with a similar board, but there are too much differences, and the stock BIOS is missing a lot of...11-17-2023, 10:56 AM -
Hello everyone,
I recently bought a non-working Asus Zenbook Pro Duo OLED UX8402ZA that was listed for parts only. The seller mentioned that it had no display output but that the charging lights worked.
When the laptop arrived (without a charger and SSD), I connected a charger and confirmed with a multimeter that it was charging the battery. However, when I tried to power it on, only the backlight of the secondary display came on. There was no image, and it didn’t boot into the BIOS.
I decided to try flashing a new BIOS, but since I didn’t want to desolder...
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