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BIOS Rollback failed

HP Recommended
ProBook 4540s



I want to downgrade my BIOS using HP UEFI Diagnostic Tools. It has a rollback option but doesn't work:


12/24/18 00:15:23 Verifying Binary match
12/24/18 00:15:23 Loading Signature File
12/24/18 00:15:23 New Bios Verify Signature Return Result not handled (Invalid Parameter)
12/24/18 00:15:23 Bios Verify Signature Not Succeed (Invalid Parameter)


This is what I get when I try to downgrade from F67 to f43 or any other version.


This update has broke turbo boost on battery and other random problems like reinstalling drivers every time the OS starts, random powern on's etc..

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