Hello, I flashed the Mix 4 weekly last night using the guide on this site. While installing my apps I did not notice that the battery was draining like water from a leaky bucket. It died before I could plug it in. It does not want to take a charge with the stock 120W cube and the stock cable, I left it to charge all night and there was no gain at all. It has just taken a charge in slow mode with a cheap slow charging cube. It does not gain any charge on Quick Charge whether the device is on or off. Has anyone experienced these issues? What should I do? Reflash? Please help!