I'm sorry the charging circuit seems to have broken down. You need a new logic board. You should always try to replace a broken part yourself first. search model name plus "repair guide" on any search engine. There are other websites that sell all the replacement parts, one of the bigger ones is http://portatronics.com (646) 797 2838. Then for the repair itself you can venture to do it yourself, or better ask a friend who has done a similar repair before.