helo, not sure whether this is the right thread to post my question.

recently i checked and fix my fat psp using keycleaner, my question is how can i fix the 0x0041.bin file?

tried googled and all suggest to get the file from another psp fat, then use another program to fix it, can someone direct me to where i can get the file? or can someone just send the 0x0041.bin to me?