When the official method fails (e.g., BIOS updated past 2022 or a Computrace lock), you need hardware. This is the "exclusive" method used by repair shops charging $150+.

Thanks to a 2024 leak of HP’s internal RSA private key (used for the ProBook 650 G5 management engine), a software-only attack is now possible—though it remains "exclusive" to private Discord channels and Russian hardware forums.

Here is that essay.