I'm no expert but it sounds very similar to many re chargeable items I've had that have done the same thing and it was always that the pins that the charger/ cable plug into, or aka the connection port is damaged in some way. It shouldn't be a big deal to change with all the info available on here and other sites like you tube. Just be very carefully when you take the screen off not to damage any ribbon cables or the wifi antenna or anything close to the screen surface. It's probably out of warranty so it will cost a bit to send it in if you don't want to fix it yourself. I had my iPad 2 quoted for digitizer screen replacement and it was going to cost 200.00 to 250.00 or more so I decided I could try to fix it myself. If I couldn't I probably wouldnt be any worse off since I would have to send it in, but, I am somewhat mechanically inclined..hope that helps..let us know what you find out...