Dear Samsung Member,
Greetings from Samsung Customer Support!
We understand you concern about "phone hanging". Kindly perform the below mentioned few of the quick steps:
1) Check space availability: keep at least 20% internal memory free.
-Settings > Device Care > Storage.
2) Check internal memory space: To improve the performance RAM of the device should be free. So, clear the RAM memory once in a day.
-Settings > Device care > Memory.
Kindly visit the given link for the complete steps and be assured it should resolve your issue:
For all the issues kindly attach the log file and send it to us in the Samsung member application(attach when the issue occurs within first 15 minutes):-
Samsung Members App > Feedback > Error Report > Attach log file.
Thank you for writing to samsung
Samsung Customer Support