I have an M8 that powers up, shows the basic first screen with all the brightly colored boxes, but will not go/move to any other box from a remote control command/button NOR will it move or respond/react to a USB wireless keyboard.If I toothpick RESET thru the AV port and reboot to the system reset screen, I can't move up or down to the various choices/selections! I have tried other remotes(even though the one I'm currently using works fine on other boxes) from other types of boxes(M8S,MxQ Mxqpro) and nothing! I have powered down and up several times and"toothpick" reset several times, still NFG! Any suggestions?