I am playing video files from a micro SD card in my Hudl2. The screen goes dark after a few seconds. interestingly when the video is paused the screen stays on. The screen sleep setting is at 30 minutes! I have tried a variety of video player and where possible set them to never turn the screen off and have also tried variety of apps, eg Wakey, to keep the screen on. Have looked on a number of fora and tried suggested solutions with no joy! Can anyone help?