Sorry if this has been posted before. My Psp go is running on 6.35 pro b, and I want to update it to CFW 6.61. It's a temporary CFW, do I have to uninstall it somewhere in my psp, or delete a file before updating it to 6.61 and installing the CFW? And will any of my ISO files be deleted when I update and install? I reaaally don't want this to be another paper weight. Thanks!