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‎10-17-2021 12:31 PM - edited ‎10-17-2021 12:35 PM

HP Recommended
Product: hp probook x360 11 g5 ee

Hi,

My trouble is that my hp probook x360 11 g5 ee had a bios post error code (two times blinking on caps lock)

I knew that it was a bios issue so I decided to go on the hp support website to download the latest and greatest update/ recovery for my laptop. I flashed it on a usb key and I restore the bios and now the computer have at least hp logo showing up but won't boot, it's giving me an error "Hp Bios Version Mismatch"

"The system bios version does not match..." "Boot Block version : 02.00"  "System Bios version 07.02"

Past that screen It comes up with a secure boot "A device added is signed with the Microsoft UEFI CA and can"t be used. System administrator must re-enabled Microsoft UEFI CA key to boot with this device."

What I think I have to do is get older version of that bios but I can't find older versions anywhere.

I can't access windows and I can't access the bios.

If someone can help me

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