My i pad started playing up a few weeks ago with not charging battery when connected to my laptop. Now it doesn't detect anything when I plug it into any of the USB's. I have tried all I can find on the web, hard reset, re install i tunes, make sure any drivers are working, ensure the apple mobile app is on, it is not showing on the pc full stop. It works fine as a pad but won't be able to sync it. Any advice welcome.