hi, i am completely new to psp, i bought my first one yesterday, which is a psp 3001, it had 6.37 in it and the module is 9g. after reading a lot of stuff today, i switched to OFW 6.39 and then installed 6.39 PRO B7. it works just fine, but is this the best solution for me right now? can i get a permanent hack? should i downgrade to 6.20? i'm not sure if i understand if i can even do that or not, some tutorials say that i'll get a brick and some say that it's already possible. so if anyone could just suggest the best solution for my situation, i would appreciate it a lot