Re: Issues with TPM ic in laptops
Just to summarize,
the issue was resolved by replacing the chip with a new one.
The BIOS was able to recognize and initialize the new TPM IC even without a clean ME region, which was tried before but did not yield positive results.
Thank you to everyone for their contributions.
traveler0091
Member
Last Activity: 12-26-2023, 12:46 PM
Joined: 08-18-2023
Location: YEREVAN
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Re: Issues with TPM ic in laptops
I have tried to downgrade the bios up to v1.6.*.
But unfortunately it doesn't give a result.
The old versions (below 1.9) may just hide the error message but not solve the problem. Also with that versions I noticed that the laptop starts functioning unstable and the windows starts arising some BSOD errors.
Of course not the bios chip. I meant the TPM chip )
As I understand from the forums, there is a way to hide this message by doing some changing in the bios dump, but...Leave a comment:
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Re: Issues with TPM ic in laptops
I have tried to flash the bios with clean ME region.
It didn't give any result. Still have a not detected TPM device.
So the next step will be replacing the chip itself.
I have already ordered the new one from China and will write here about the results....Leave a comment:
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Re: Bios flashing, protected IC regions
I highly appreciate your help and recommendations.
The flashing process was successful!
...
Leave a comment:
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Re: Bios flashing, protected IC
Thank you very much for your reply and clarifications.
I apologize for my naive questions. I'm doing this for the first time.
I thought that if I flash it in this state, it might damage the chip.
So, should I leave it as is (selected) and try to flash the IC?...Leave a comment:
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Bios flashing, protected IC regions
Hello everyone,
Guys, need a quick help.
I'm trying to flash my laptop's bios with Clean ME.
Laptop: DELL LATITIDE 5480,
Motherboard: LA-E142P,
BIOS IC: GD25B128C
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Please see attached image.
The programmer shows the IC has protected regions in SREG1, SREG2, SREG3.. The only one that I can unprotect is the SREG3...
So, is this a problem? Can I flash the BIOS without unlocking the SREGs.
Is this safe to do?
My programmer is CH341.... -
Re: Issues with TPM ic in laptops
Does flashing the BIOS with clean ME solve the problem?...Leave a comment:
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Issues with TPM ic in laptops
Greetings everyone!
I decided to open a separate thread dedicated to TPM related issues.
[B]Before writing about your problem/solution, let's assume that you/we have tried all the steps officially suggested by the manufacturer, but it didn't yield positive results[/B].
In my case there is a Dell Latitude 5480.
1. On booting up, the message "Alert! TPM device not detected!".
2. The TPM settings have disappeared from the BIOS menu.
3. My laptop has a TPM chip (QFN32 IC: NPCT650VB2YX) on the motherboard (LA-E142P).
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Re: Dell Latitude 7480 TPM Device Missing
Did you solve the missing TPM alert problem?Leave a comment:
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Re: DELL latitude 7390 bios dump
I have the same issue and trying to solve it. As I got from the forum the cleaning the me region will not solve the issue, and I have to replace the chip itself.
Did you just replaced it and it showed up in the BIOS? Or there are any other procedures like bios flash with clean me region or TPM chip firmware update?...Leave a comment:
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