I'm not an Android specialist........
2 things to verify:
-after loading the bios, have you disabled HLE and saved config?
-With Fast boot OFF, when you see the the white sony screen, do tou see the orange square? and then, does it go to the screen where PLAYSTATION is displayed at the bottom? If yes, do you also see the PSX logo in full colors above PLAYSTATION? If it doesn't go to this second screen, try another bios. If it goes but you don't see the PSX logo in full colors, your iso are not good, try to get them somewhere else.
That's all I can say to help, I'm not such an Android specialist, running it on my HD2, but almost never using Fpse for droid since it's wayyyy behind FpseCE for WinMo
Edit: have you tried without a bios, with HLE enabled? Also, have you tried to uninstall Fpse completly then reinstall it?