Hi, I just bought an already downgraded japanese Champagne Gold PSP. The thing is, when I try to toggle USB (flash0) in the recovery mode of 3.40OE-A, the screen freezes, and I can't access -much less change- the contents of my flash0 (I want to manually install the custom theme of my previous PSP, and also install the .prx needed in order for iRShell to work). Can anyone help? Should I use the recovery feature of CFW? If so, how do I do that? thanks.