Hey guys. Im experiencing 2 problems on my S4. 1st: My phone is usually on Silent Mode and when I place a call, it automatically changes into the Sound Mode. And vice-versa, if I place a call when it is on Sound Mode, it gves a vibration and automatically changes into Vibrate Mode. Been experiencing this since many months. I have never installed any Sound Profile app or anything of that kind. 2nd: Even after light use, I dont have much battery life remaining. Honestly, my S2 was loads better in battery consumption. If i use the phone moderately, I end up having battery of only 50% from 100% in 2-3 hours. Havent installed any battery optimising apps either. My device is Jellybean 4.3.