Hi all, I'm new to this. I have a PSP 2.60 that can play iso, cso games. It's been downgraded to 1.5. I use DEVhook to load my files. I haven't had any problems until recently. I got FF and when I go to load it like normal, it saids to upgrade to 3.1. I was told before never to upgrade, how do I get around this or is this ok, being an iso file. Your comments and suggestions will be much appreciated. Many thanks in advance.