There’s only 2 ways that I know of to do it.
1)brute force seed/key finding software
2)desoldering the chip and pulling the seed/key and re-installing it.
Both are something that 99% of customers aren’t able to do and for most people, it would be cheaper to purchase a new PCM than to pay someone to do it. It’s really an asshole thing to do, wish people would stop locking PCM’s.