I'm trying to play the US version on my Nvidia shield portable on the latest version of ppsspp, and it gives me a black screen with some music. Can anyone help me?
Does the DLC actually have a lowercase filename when it's installed onto a PSP directly from the store / a PS3 / etc.? This might be an issue with whatever is extracting the DLC, or it might be some special behavior this game is triggering via some setting.
Normally lowercase filenames are skipped, based on firmware tests. Most likely any DLC extractor on the PSP would create uppercase filenames automatically, since that's the convention most games seem to use.
As far as the black screen - not sure, hopefully someone who has the game can help.