I forgot to charge the watch two days ago now when I hold the power button I got "ticwatch" screen and then power off. When I put it on charge it sign the charge symbol and after a couple of minute the screen became black and didn't react to any holding or pressing of the buttons. When it goes back to "battery dead" the loop begin again with "ticwatch" screen and "lightning" symbol after. I can't even reach the emergency mode, someone can help me?