Dear Samsung Member,
Greetings from Samsung Customer Support!
Thank you so much for sharing your feedback regarding M31 device with other Samsung members and we request you, kindly register your concern in Samsung Members app (Samsung Members app > Get help > Feedback >ask question).so, that we can assist you accordingly.
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