Well as i was posting back in other forum (wich was getting a bit out of topic so i made this new one) I want to upgrade my psp that its currently on pro 6.35 A to any version of the B8 be it 6.20, 6.35 or 6.39, all this because the A version isnt compatible with Psx games, wich i really want to play, but, as it stands i am a noob in psp hacking , so i need someone to help me with this in baby steps, in the other forum someone said the best way was to upgrade to 6.39 ofw then downgrade to 6.20 and install pro b8 to that version, i guess it would be nice since i could permanently mod the psp, i readen that if you try to downgrade the psp lower than it should go it can brick, since i got a psp go i think its fine to go to 6.20 ? well all help is welcome!