• ×
    Information
    Need Windows 11 help?
    Check documents on compatibility, FAQs, upgrade information and available fixes.
    Windows 11 Support Center.
  • post a message
  • ×
    Information
    Need Windows 11 help?
    Check documents on compatibility, FAQs, upgrade information and available fixes.
    Windows 11 Support Center.
  • post a message
Guidelines
Are you having HotKey issues? Click here for tips and tricks.
Locked

‎10-06-2023 06:11 AM - edited ‎10-06-2023 06:42 AM

HP Recommended
Product: HP Z2 Tower G9 Workstation Desktop PC (4Y0H8AV)

Hello,

 

 

We have a HP Z2 G9 PC that was provided new already downgraded from windows 11 to windows 10 22h2. I updated the BIOS  from Version  02.02.02  to 02.03.02 (U50, 31/08/2023),  by using the executable file provided by the support.hp.com webpage. The update went thru successfully, however windows does not boot anymore, shows the blue screen with the code "Unsupported Processor".

 

Tried to roll back to the old Bios version creating the restore thumb drive with the executable file provided by the support.hp.com webpage and the bios tries to be updated like it's almost doing it and then, after typing in the confirmation numbers the Bios update throws error "Bios Update did not proceed because the system administrator has locked the BIOS version".

 

There is no BIOS password on it and all bios protection features seem to have been disabled. Error persists even after resetting the bios successfully (real time power loss POST error shown afterwards as expected). 

 

Tried rolling back again by mounting another HDD with it's own windows version that managed to boot, and use the .exe BIOS file provided by support.hp.com webpage  and still was unable to do any roll back . 

 

How can I force to roll back this unsupported bios update? 

 

If it's not possible to make a roll back, how can I manage to fix the SSD drivers so it boots?

 

Thanks in advance! 

 

Category:
3 people had the same question
Warning
Be alert for scammers posting fake support phone numbers and/or email addresses on the community.
If you think you have received a fake HP Support message, please report it to us by clicking on "Flag Post".
† The opinions expressed above are the personal opinions of the authors, not of HP. By using this site, you accept the Terms of Use and Rules of Participation.
Didn't find what you were looking for? Ask the community
† The opinions expressed above are the personal opinions of the authors, not of HP. By using this site, you accept the <a href="https://www8.hp.com/us/en/terms-of-use.html" class="udrlinesmall">Terms of Use</a> and <a href="/t5/custom/page/page-id/hp.rulespage" class="udrlinesmall"> Rules of Participation</a>.