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sa24
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TPM has dissapeared after BIOS upgrade

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HP ProBook 450 G1
Microsoft Windows 10 (64-bit)

Ok, very FRUSTRATING and wierd!!!

We have about 30 HP ProBook 450 G1.

BIOS shows that  -some of them have TPM, some of them not.

We have even unscrew couple of laptops to compare - everything is the same, even motherboard part number!!!

 

The only differency we found was a BIOS versions:

1. With TPM - BIOS v 1.05

2. Without TPM - BIOS v 1.31

 

We tried to upgrade BIOS version 1.05 of a laptop with TPM  to BIOS v 1.31--- and TPM has dissapred from BIOS!!! I mean you cannot enable it anymore. It does not show TPM under security TAB anymore.

 

The most frustrating part is that we cannot downgrade BIOS versions!!!!! Tried different methos: to run older BIOS driver, to update it from USB -nothing works!!! Probably "Due to a change in the Bootblock of BIOS version 1.06, you cannot downgrade BIOS versions 1.06 and above (1.07 and 1.08) to versions 1.05 and below."

http://h20564.www2.hp.com/hpsc/doc/public/display?docId=emr_na-c04329619

 

 

Dear HP, what should we do????

We bought laptops with TPM - now we don't have them!!!

Should we return all laptops and go with Dell???

 

Regards, 

 

 

 

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lasvegaswireman
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Message 2 of 2
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This is NOT official HP Customer Support and I, as most other persons on this forum, do not work for HP. This is a peer-to-peer user supported forum for HP products. HP maintains no official presence on this forum and it is unlikely that HP will respond in an official capacity. Any reply from a HP employee represents their own opinion and not that of HP's.

 

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