Ok, so today a woman came in my store and was telling me how she bought a psp from somebody and when she tried to upgrade her psp it wouldn't let her because she wanted to play a game that required 3.03, so when we got a new game to upgrade it would say Error

DADADA).
So thats when we realized that her psp had Version 2.71 SE-B, and since this psp was for her son, who has autism (sp.) he has been really depressed because he cant play his new games.
So my question is, how can i take that generic version off and then put the official sony update on it? any downgraders? And if you can help, can you give VERY detailed instrutions on how to do this, thank you.