Dear Samsung Member,
Greetings from Samsung Customer Support!
We at Samsung understand your concern and we regret for the inconvenience you have faced.
Kindly follow the below mentioned step to improve the performance of the device:
1.Check device in safe mode: Enter safe mode: - Press and hold the Power key, when Power off icon appears.>Press and hold the power off icon. Exist safe mode: Press volume down and power key simultaneously for 5 seconds to restart the device.
2. Reset the device: Setting>general management>reset>reset setting
Note:- Kindly create data backup of your device via SMART switch mobile application or http://www.samsung.com/in/support/smartswitch pc suite.
If the issue still persists, kindly attach the log file and send it to us in the Samsung member application (Attach when the issue occurs within first 15 minutes of the occurrence of the issue):-
Samsung Members App > Feedback >Error report > Attach log file for any issue
Thank you for writing to Samsung.
Samsung Customer Support