Dear Samsung Member,
Greetings from Samsung Customer Support!
Be assured, to resolve the issue please follow below given steps:-
1. To resolve auto restart issue please follow below given steps:-
Go to Settings > General management > Reset > Turn off auto start.
2. Reset the device:- Before resetting, kindly create data backup of your device via SMART switch mobile application or http://www.samsung.com/in/support/smartswitch pc suite.
How to reset:- Settings > General management > Reset.
If the issue still persist, kindly register your concern in Samsung Members app along with short video, screenshot and error log file(Samsung Members app > Get help > Feedback > Error report/ask question).
Note: Please send device log files within 15 minutes of issue occurrence along with the exact issue details.
Thank you for writing to Samsung.
Samsung Customer Support