My iPad Air 1 stopped charging last December. The symptoms were that when plugging in the lightening connector, the beep sound indicator of charging was missing. However, if I turned the iPad off and then connected the lightening connector it did start charging and would boot up and work fine. Then some months later, even this process would not start the charging process and essentially the iPad was dead. I took it to an Apple repair shop for investigation and when it came back from the repair shop and they said that my battery is OK and the problem could be the Motherboard or the Charging Port. They were not equipped to take the investigation further but said that Apple has had a problem with the charging port on this model so it will need to go to Apple for further investigation. Has anyone had similar problems with the Air 1? and has Apple actually admitted to a problem with the charging port?