1. The charger is not plugged in properly.
2, use the universal charge to make sure that the electric board is not broken.
3, battery aging.
1, change the universal charger to see if it is effective, if it is effective, it is certain that the charging AC adapter is broken.
2, if the above can not be charged, it must be that the electric board is broken, it is recommended to go to the mobile phone maintenance point or digital city with an electric board.
3, bring the purchase invoice to Nokia after-sales service point for maintenance.