DMI information lost after an BIOS update

[Aaravrayansh]

I have an HP Notebook - 15g-dr0006tx I recently did a BIOS update everything worked fine until I noticed that windows 11 updates were giving errors, upon further research I found that my tpm 2.0 was not recognized by the OS and was also not visible in BIOS setup. I tried rewriting the BIOS but nothing worked. then I noticed in my OS and BIOS the product name was showing as InsydeH20 EFI BIOS instead of the real product name upon further checking I found out in BIOS my laptop's original serial number and product number was not visible instead of that some gibberish and random letters were there. Upon further research I found that my laptop's original DMI is lost and I cannot change it . MY laptop is working fine loading into windows 11 the only problem is some applications that require hardware id or related info are not working and windows updates are giving error because of tpm 2.0 is missing. IS there any way to fix this problem ? Plz help. 

[Hawks_Eye · Accepted solution]

Hi @Aaravrayansh 

Welcome to the HP Support Community! We're here to help you get back up and running.

I understand the situation clearly. The BIOS update has caused the system’s DMI information (serial number, product number, and product name) to be lost or corrupted, which in turn prevents the TPM 2.0 module from being recognized. Since TPM is tied to system board identifiers, Windows updates and applications relying on hardware ID are failing. The notebook still boots fine, but the missing DMI data is the root cause.

Here are structured steps you can follow to address this:

1. Confirm BIOS Version
• Restart the notebook and enter BIOS Setup (usually by pressing F10 at startup).
• Note the current BIOS version and compare it with the latest available for your model from HP’s support site.
• If the version is mismatched or incorrect, reflash the correct BIOS for your exact model.
  
  
2. Perform a CMOS Reset
• Power off the notebook, disconnect the AC adapter, and remove the battery if possible.
• Hold the power button for 15–20 seconds to discharge residual power.
• Reconnect and power on. This ensures BIOS settings are reset to defaults.
  
  
3. Check TPM Settings in BIOS
• Enter BIOS Setup again.
• Look under the “Security” or “Advanced” tab for TPM or “Embedded Security Device.”
• Ensure it is enabled. If the option is missing, it confirms the DMI data loss is preventing detection.
  
  
4. Run HP Hardware Diagnostics
• Press F2 at startup to launch HP PC Hardware Diagnostics.
• Run a system board and security test to verify if TPM hardware is detected.
• If diagnostics do not list TPM, the BIOS identifiers need to be restored.
  
  
5. Restore DMI Information
• The missing serial number and product number must be reprogrammed into the BIOS using HP’s internal DMI tools.
• These tools are not accessible through normal user channels, but the principle is that the system board identifiers must be rewritten so TPM can initialize correctly.
• Without valid DMI data, TPM will remain unavailable.
  
  
6. Windows Verification
• Once TPM is restored, boot into Windows.
• Press Windows + R, type tpm.msc, and check if the TPM Management Console shows TPM 2.0 as “Ready for use.”
• Then retry Windows Update.
  
  

Summary:
Your notebook is functioning, but the BIOS lost its DMI information during the update. This prevents TPM 2.0 from being recognized, which blocks Windows updates and certain applications. The resolution requires restoring the correct DMI data to the BIOS. Until that is done, TPM will remain unavailable regardless of OS or BIOS reflashing.

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Take care, and have an amazing day!

Regards, 

Hawks_Eye

[Aaravrayansh]

I’ve tried all the steps thoroughly, but the issue still isn’t resolved. This likely means the notebook needs a DMI tool, which, as mentioned, isn’t available to regular consumers. So, will I need to take it to an official HP service center for repair, and what would the cost be? Will the entire motherboard need to be replaced?

[Aaravrayansh]

I’ve tried all the steps thoroughly, but the issue still isn’t resolved. This likely means the notebook needs a DMI tool, which, as mentioned, isn’t available to regular consumers. So, will I need to take it to an official HP service center for repair, and what would the cost be? Will the entire motherboard need to be replaced?

[Hawks_Eye]

Thanks for troubleshooting, I appreciate all your efforts!

These queries are best addressed by our service center itself.

In this regards, I would request you to contact HP service center for further assistance.
 

Click on the link below and fill in the required details to find the closest service center and their availability.

Service Center Locator: https://support.hp.com/us-en/service-center

Please call before visiting a service center.

Thanks!

Hawks_Eye