Recently, my phone started malfunctioning. Youtube videos would just stop as if I pressed pause, camera would behave jerky, and it would stop recording videos. I performed factory reset, and as I was setting it up, I found out that a specific app was causing the issues, but that app had worked fine before, so I have no idea what changed inside my phone to make the app cause problems like it did. The app is Speed Dial - Jozsef Csiza. I removed the app and phone works fine. I install it again and problems reappear. I tried older versions, no good. It making me crazy with curiosity why this is happening. I guess there is a problem with my phone, but what is it?!