Head phone jack output not solved even by this new update (. 189). Head phone jack output stop working after you change any mode in audio wizard... This was came from previous update yet not solved.. Please do something for it cause every time I change mode in audio wizard I have to restart the phone. Second one is youtube navigation control doesn't disappear by it self like it happenes in any other mobile. In 6z we have to click on the cross mark which comes just beside the navigation bar. This issue is also came from last update only... Please solve this as it irritates lots... And thanks for this update cause it solved the problem of automatically Camara flipping in whatsapp call.. It was headache for me... Hope you guys will respond on these issues...