Using Note9 (SM-960F) since 2018. Bought it in preorder (sale) booking.
Since march 2019, the phone is overheating and the screen display turn green for some time.
It is restored to normal (as earlier) after few minutes.
I am thus sure that this ...
Because it started after March update, there was no physical damage. The screen display goes off to abnormal, phone gets heated up. Turn off screen for few minutes and then again it is normal.
I am also facing the same issue. I was waiting for software update. Unfortunately the june 1 security patch level June 1 2020 installed on June 19 has not solved the issue
The option of adding pre configured quick responses in SMS is missing in Note9. Though you can create a quick response in the settings there is no way to add or insert it in SMS messages