Dear all,

I have a PSP 2000 Firmware is 3.9 M33.3 (not sure what is CFW / so i dunno if mine is CFW) !!!! Sorry i'm noob!!!

Anyway, i want to play the patapon 3.iso but my psp is unable to run the game.

I would like to ask which firmware should i update to and if can which tutorial i can follow to update.
I'm totally dont know anything about how it works, and i dont want to turn it to brick if i update a wrong firmware etc.
I also dont have padora battery and have no clues what it is as well!!

Really appreciate your help!!!

THANK YOU VERY MUCH!!!