I wish to stop people going on my PSP and doing stuff. Is there for example, like a pin you can put on the PSP when it turns on? Because I have a annoying younger bro who keeps taking it while I'm not at home and downloads movies etc. on to it and I'm worried he might do something wrong. Thanks, P.S. Im on 3.52 M33-4. Should I update to 3.71 m33?