Cause of phone not to charge with its direct charger: And his solution.
1 Bad charger or charging pot.
2 Bad or wrong battery .
3 charging or battery not contacting well to its contact .
4 battery contact not functioning very well or being bad.
5 charging IC been week or bad.
6 software problem .
1 change the charger or the charging pot .
2 change the battery if bad or use correct the correct battery if its wrong type.
3 check the charging pot or set the the battery very well to it contact.
4 contact the battery contact very well its battery contact if not contacting very well you change it.
5 heat the the charging IC with rework station if weak you change it .
6 flash the phone with computer .