Dear Samsung Member,
Greetings from Samsung Customer Support!
Please perform the below mentioned steps to resolve the issue:
To Reset S Pen - Insert the S Pen into the slot. Then, open the S Pen remote setting screen and tap More → Reset S Pen.
For further assistance, register your concern in Samsung Members Application (Open Samsung Members Application > Get help > Send Feedback > Error report/Ask questions).
Thank you for writing to Samsung.
Samsung Customer Support
IM NOT GOING TO BUY SAMSUNG MOBILES.. IM FACING SAME PROBLEM IN EVERY NOTE SERIES ..AND SAMSUNG IS NOT SUPPORTING ME..VERY BAD ..