System Board Information Missing – MPM Locked, Need BIOS Info Reprogramming

[vaibhav081]

My HP laptop shows missing System Board information in BIOS. The Serial Number, Product Number, and other identifiers are blank. The Manufacturing Programming Mode (MPM) is already locked, so I am unable to reprogram the information using HP BIOS Configuration Utility (BCU).

Because the MPM is locked, I cannot enter the system information myself. I need assistance with reprogramming the System Board data (Serial Number / Product Number / SKU) or guidance on the correct HP service procedure to restore the product information.

Please advise the proper steps or MPM tool to fix the missing BIOS information.

[SteffenBaierUK]

Hello @vaibhav081 ,

Welcome to the HP Poly community.

If no other volunteers reply, I suggest you contact our Support organization in your region. Details are in my Signature.

Best Regards

Steffen Baier

[vaibhav081]

Hello Steffen,

Thank you for your guidance. I appreciate the suggestion to contact HP Support.

I can confirm that I have already performed the following troubleshooting steps, which align with the common fixes for this issue:

1. I have been running the BiosConfigUtility64.exe command from an elevated (Run as Administrator) Command Prompt.

Despite these steps, the command continues to fail with reason="Access denied" and BCU return value real="13"or real="6", confirming the Manufacturing Programming Mode (MPM) is currently hard-locked by the firmware (likely after the initial DMI write).

As this lock cannot be overridden by the BCU tool itself, I request the necessary Service Master Key (SMC.bin) or service instructions to temporarily unlock the DMI section for the required reprogramming.