<p>I have a slim PSP-2000 and it's running CFW 5.00 M33. I tried running the m33-6 upgrade by placing the 500.pbp in the update folder along with the eboot.pbp but it just seems to get stuck when I flash it. What is it that I am doing wrong? any help would be greatly appreciated. I have downloaded some new games for my 7 yr old and they don't work on the current firmware. Any help in upgrading to 5.50 CFW will also do.</p>