PES13 only game that works

[Andrej]

Hi everyone,
I started to use the android version of ppsspp (v.0.7) last week and my device is the nexus 7 from Asus. My problem is that no game is working except pes13. I tried to play god of war: chains of olympus, fifa12 (people said it would work on ppsspp for android) and need for speed most wanted, but all I got was a black screen with nothing happening. The first thing I did was changing the settings and see if that would work for me, but it didn't. My second thought was that maybe the isos just don't work. I'm travelling right now so I'm not able to try them on the PC so I downloaded four different ones for the game need for speed, but it changed nothing, all I got was the black screen. My last try was to download the older version (v.6.1), nothing happened. For now I'm out of thoughts and don't know what to try so I'm asking you, if anybody has a clue what could be the problem and a possible solution.

Thanks and have a nice day!