Ok, let's do it step by step. 1) You install Andrey's radio using developer's mode. 2) Can you see any complains from security? 3) You launch FM Radio and see main screen. 4) When you press Power button, it turns on and you can hear the sound? 5) You swipe away Andrey's app and close it completely. 6) Launch FM Radion N9 and what happens there? Can you see main screen? 7) Can you hear sound? 8) Which version is that app?