this is the poor firmware I tested, bad battery management, bad speed, ppsspp run very slow games like assasins creed and tekken 6, the unique pro is the fix right stick, if you want a custom firmware with 1.1.5 fix, try maetel prometheum rom. is the unique acceptable firmware based in a 1.1.5 kernel, the problem are the navigation buttons 'back, home, menu, screenshots, etc'
by the way, Anybody know how to get back the navigation buttons?