I recently purchased a Galaxy Nexus off of ebay for cheap. The seller only listed that it had a charging issue, and I thought the charging port needed to be replaced. Well, after replacing the port, the battery still wouldn't charge. So I replaced the battery. Phone STILL WON'T CHARGE. When plugged in, the phone shows the charging battery icon, but will say "84%, Not Charging." I also noticed the battery discharges very quickly. I attached a screen shot to help diagnose the issue. Any ideas what's wrong?