So I got this nice, ued iPad 1 about four or five months ago. It's always been a little persnickety about what charger I use; for instance, it has always rejected the genuine Apple charger I have for my fourth generation iPod, but it has always worked with the third-party charger I got for it on eBay, as well as the charger for my Motorola smart phone. But as of this morning, every charger I plug it into, including my MacBook Pro, gives me the message "Charging not supported with this device". The battery is presently at 47%. Is there anything I can do to reverse this situation or do I just enjoy the iPad until the battery dies and then toss it and remember not to buy another used iPad?