I recently had a new screen & LCD installed on my wife's AIR. When I picked it up and brought it home, everything worked fine BUT the battery would not charge. I charging symbol shows next to the battery icon but will not charge past 5%. I did a couple of soft reboots and even did a reset settings today. Prior to that procedure, no sound occurred when I connected the power cord. Now it does PING when the cord is connected. I have tried different charging blocks and cords and time the charging symbol appears next to the battery icon. HELP?