Is it possible to change look of screen, when someone is calling? I installed Ultimate Call screen, but it doesn't change anything. I'm asking this because my caller id apps are not working, and i also tried to use app for automatic switch on bluetooth, when someone is calling me. I guess it doesn't working because default call screen doesn't let those programs to take over. I'm using SGS2, and GO Launcher. Tried to switch back to default MIUI launcher, but nothing happens. Thanks in advance for any answer!