A few days ago The Flow was asking about epsp exploits and that he found a way to get a ps1 loader working on higher firmware.
https://twitter.com/theflow0/status/696571068560097280
https://twitter.com/theflow0/status/696984703245623296
173210 reports back that he was able to install the flow ps1 eboot on to 3.57
https://twitter.com/173210/status/696494324549193728
Today the Flow showed everyone his ps1 exploit works just fine on FW 3.50, but like he said in the tweet above he needs another kernel exploit for this to work on FW3.57. It’s great to see progress with any PS1 exploit after such a long hiatus in that department. Keep up the good work The Flow and can’t wait to see what else you have in store for the scene.
https://twitter.com/theflow0/status/698528643803410432