Hi guys, I need an advice from an iPad repair tech. Got a Air 2 that doesn’t power up, no sign of activity. When I connect the charger I get 4.5v and 2.5amps on the usb tester. There probably a short somewhere. The iPad is not open yet, I checked the charging port under microscope and it seem perfect. So where could be the short inside ? Thanks, any help is appreciate :-)