Hi Piscean ,
I've done that and more , I've turned wake up gestures on and off , I've factory reset it 7 times now and still doesn't work , the screen doesn't rotate when i put it on charge either . I put it on radiator over night thinking maybe sweat got into it as i use it when on spin bike and when i got up next morning it was working fine for about an hour then it stopped working again , now it works sporadically for 2 minutes or so so i'm out of ideas and there's nothing on Google or YouTube regarding my problem .