On the bottom of the media player to the left of the mounting bracket, there is a small hole as shown below. Use a small paper-clip to activate the factory reset button.
1- With the power adapter plugged in, using a paper-clip press the paper-clip in until you here a click, and then release. Wait a minute to see if the media player starts up and updates the screen.
2- If that does not start the device, unplug the power adapter, then press the paper-clip in until you here a click and hold down the reset button while plugging in the power adapter. Continue to hold the reset button down for a few more seconds and then release it. Wait a minute to see if the reset menu is displayed on the screen.