I've tried several different chargers and while they work on other phones, they don't work on mine so I'm sure that the issue isn't the chargers. At first it started coming up with "USB device not supported" when I tried to charge but now it's also coming up with "device overheating" too. I've tried closing down all the apps, installed the latest updates, turned my phone off and on again and still no joy. I've tried charging with the phone turned off and nothing happens. When I take it out after I've left it in for about 15 seconds the end of the charger feels hot. I can't see any obvious debris in the charger port. I tried looking for the liquid indicator but I don't know if this phone has one. I tried using the USB charger in my laptop and when I plugged it in, my usb mouse stopped working and it still wasn't charging. Anyone have any ideas what it could be? It charged for about an hour in the morning yesterday and I used it all day without any issues.