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Thanks for your work reverse engineering PSJailbreak, by the way. (https://www.psdevwiki.com/ps3/PSJailbreak_Exploit_Payload_Reverse_Engineering https://www.psd

• phire 3y ago
  I also worked on PSGroove. Though that was very much a team effort, I knew nothing about USB before working on that. From memory, my contribution was mostly tweaking the code until it worked, I think my PS3 was the first to be exploited by PSGroove. Though, I wasn't happy at merely copying the sequence of packets USB that lead to an exploit, so I spent some time trying to get a better understanding of how the exploit worked. That document is the result of my efforts.