since I bought the galaxy s4 everything went well but since two days ago when I try to watch a video, the video plays but starts flashing and fail ... the image is doubled, flashes, etc ... really I could have enough videos say that more than 150 but have in the SD and the memory of my phone is good, you could do to fix it? I tried them on other video players, but always the same ... everything else goes well my s4.