N72 mobile phone charging problem! Consult a master.

My mobile phone is n72, and there is something wrong with the charging of my mobile phone. First of all, I don't know if you have seen the news that Nokia batteries have quality problems recently. You can go to official website to see if your battery is among the problems. When charging the mobile phone, I found that the charger could not be turned on and off, otherwise it would not enter the charging state and the body of the mobile phone would heat up. I think the problem of your mobile phone battery, like me, belongs to the small defect of the mobile phone itself. Just pay attention at ordinary times. If you really want to solve it, you can call Nokia's customer service number.