press and hold power button while holding up volume button. then. plug in cable. you will see Samsung logo secured by Knox. then let it charge for a while like couple of minutes. then unplug. then hold down power again. plug charging cable. Samsung logo appears when charging. unplug charging cable. plug in cable then let it charging for few seconds. then, reset menu will appear. select reboot system now. then your login screen or pin setup will come up. let the cable plugged in then you will see that it's now charging moving from 1 % onwards.