I have Samsung Galaxy Note10 Plus. When I am charging my mobile, it displays fast charging but after few second it displays charging only. I have again push the charging pin mobile socket and it displays fast charging.
Sometimes it automatically connects as fast charging.
Either charging cord or the device charging dock may be damaged. Try to charge your device with a different cord, if it works then your cord is damaged otherwise it can be charging dock. Incase if it's charging dock ull need to send device to service center for further inspection. Also from personal experience I recommend u to take your device to samsung showroom and check the device with other changes of note 10+. As same had happened with me but in my case the charging port had dust in it so I cleaned it with small brush and it was fine. Try to reset your device it might work.
I feel the same in samsung galaxy note10 plus, on march 1st week. Same problem, i didnt do anything, after one week it get resolved. I didnt even change the cable or adapter or the electrical port.
For further assistance, register your concern in Samsung Members Application (Open Samsung Members Application > Get help > Send Feedback > Error report/Ask questions).
