Lenovo ThinkPad T460 problem

[robagp]

Lenovo ThinkPad T460

LCD and the cable tested and working fine.

I pull out the LCD cable from the motherboard, and plug it another laptop, It is working fine.

As you can see in the video /link down bellow/ laptop working without any issue with HDMI.

I took out the ram , I got ram issue beeps, so starting beep is working.

Unplugged all batteries, cmos battery too.

No hdd inside, it starts from usb with live linux.

No issue everything wors as it have to be. Only LCD blank. Why?



https://youtu.be/uJkT94XMKz4

[volinakis]

Re: Lenovo ThinkPad T460 problem

Lenovo ThinkPad T460

LCD and the cable tested and working fine.

I pull out the LCD cable from the motherboard, and plug it another laptop, It is working fine.

As you can see in the video /link down bellow/ laptop working without any issue with HDMI.

I took out the ram , I got ram issue beeps, so starting beep is working.

Unplugged all batteries, cmos battery too.

No hdd inside, it starts from usb with live linux.

No issue everything wors as it have to be. Only LCD blank. Why?



https://youtu.be/uJkT94XMKz4

Dump your bios and perform a clean ME.

[robagp]

Re: Lenovo ThinkPad T460 problem

Dump your bios and perform a clean ME.

First of all thank you for your reply.
Sorry english is not my native language. I don!t understand what you wrote.
Could you please write me what should I have to do?
What is dump bios?
What is clean me?

[volinakis]

Re: Lenovo ThinkPad T460 problem

First of all thank you for your reply.
Sorry english is not my native language. I don!t understand what you wrote.
Could you please write me what should I have to do?
What is dump bios?
What is clean me?

https://www.badcaps.net/forum/showth...t=phoenix+bios

1. How to dump and flash
2. How to clean ME/TXE region

[robagp]

Re: Lenovo ThinkPad T460 problem

Thank you for response.

I started to save the bios file. I moded the programmer. Because I have CH341A, and they recomended to do that modification on it.

Aftef I stucked. I think because of the language.
I have to erase the bios, and after load back... but what?
I do not understand what should I have to do after cleared the chip.
I read it lot of times, and try to find something on youtube, but no dump video found. Same "clean ME" no video.
Only those videos, what they wrote to not use "Do not use use Intel ME/TXE..."
I really try to understand but cannot found the answer.

I got an idea:
What if the lid sensor is faulty?
The laptop think the lid is closed and this is why not turn on the lcd.
Anyone know where is the lid sensor/hall sensor in the T460?

[mon2]

Re: Lenovo ThinkPad T460 problem

Check the voltage to ground of J11, pin # 4 = LID_CLOSE

[volinakis]

Re: Lenovo ThinkPad T460 problem

Thank you for response.

I got an idea:
What if the lid sensor is faulty?
The laptop think the lid is closed and this is why not turn on the lcd.
Anyone know where is the lid sensor/hall sensor in the T460?

if the lid sensor is faulty you should have image but not luminosity. Put a flashlight on display and see if you have image.

[robagp]

Re: Lenovo ThinkPad T460 problem

if the lid sensor is faulty you should have image but not luminosity. Put a flashlight on display and see if you have image.

Hello,
I started, and I cannot see anything on the screen with torch.

So I try to do again what you told me first time.
I follow the description.
I did the mod on the programmer /image attached/

And I followed this link what was in your link /01/:
https://winraid.level1techs.com/t/gu...rammer/32948/2

version 1.29 chineese application not working to me, it drop me error when verify reach 50%
So I downloaded 1.34 version, it is worked.
And I downloaded the russian version too, and that is worked too,
This is the russian version link /02/: https://www.youtube.com/watch?v=J8-Sh7DjiXw

So I copied more than 5 times.

Now I have to
- erase the bios (part3 link/01/)
- after Blank
- after "If the “Chip Main Memory are blank” message appear, you can continue with the next step. Press “Open” button and find your new bios file:"
What is my new bios file?
Where should I get it?

[robagp]

Re: Lenovo ThinkPad T460 problem

Check the voltage to ground of J11, pin # 4 = LID_CLOSE

Hello,
I do not understand what do you think.
J11 where?
pin4 where?

[mon2]

Re: Lenovo ThinkPad T460 problem

Would you have the board view file? It can be used to locate the J11 connector.

[robagp]

Re: Lenovo ThinkPad T460 problem

Would you have the board view file?

No, I don't have.

[robagp]

Re: Lenovo ThinkPad T460 problem

I found the lid sensor.
It is next to the camera.
The magnet is under the touch pad.
The camera cable was physically damaged on the motherboard side.
So maybe it couse damage on the connector too.
Lid hinge broke and pull it out the cable broke half.
But I cannot see any danage. On the motherboard or on the connector.
I look at it with magnifying glass.
Is it possible to turn off the lid sensor in the bios?