Yeah, once it's broken, it's likely stuck broken - that's the flaw in hardware-based protections. On the flipside, firmware protections can be 'debugged' outside of the box.
I can't try since I don't have even 1 system to tear down, yet alone break(in the hacking/security sense).
I can't try since I don't have even 1 system to tear down, yet alone break(in the hacking/security sense).