My laptop HP Probook Core I-3 running from the previous six month with battery back up of 3>hrs, one day charger pin was fault

[HYT WLI]

My laptop HP Probook Core I-3 running from the previous six month with battery back up of 3>hrs, one day charger pin was faulty and in repairing i made wrong connections, after that laptop on new charger is not charging showing 0% but running on direct connection. Is the charging circuit damaged or battery became faullty? please suggest a solution

 

[webworkings]

It could be either one, or both. I would check the circuit first though. With the wrong connections, it may have gotten fried.