Hello everyone. I recently bought my psp. From what I understand its a TA - 082 motherboard at 2.71. I'm a little confused on how everything works what with all the devhook and loaders. I guess i'm looking how to downgrade my 2.71 to 1.50. I have some psp game iso's but i'm clueless as how to use them. So can someone help me downgrade and run my iso's?