My 235 randomly turned off with about 80% battery suring the day. I can not turn it back on no matter what button presses or combinations of presses. When I connect it to charge nothing happens. How ever when I plug it into my pc it turns one, gives my the red low battery symbol then it boots into the watch face but look like the screen is broken like an old brokengameboy screen and it flickers. As soon as I disconnect it it turns off. I have left it plugged in for a whole day to see if it needed to be charged but the behavior is the same. Any ideas?