Aqui les dejo el hack para PSvita si estas en la ultima vercion o si quieres actualizar
Gracias a TheFlow por su trabajo
h-encore
h-encore, where h stands for hacks and homebrews, is the second public jailbreak for the PS Vitaâ„¢ which supports the newest firmwares 3.65, 3.67 and 3.68. It allows you to make kernel- and user-modifications, change the clock speed, install plugins, run homebrews and much more.
Aqui un video recomendado para la ejecucion del jailbreak. Disfruten