Dear Samsung member,
Greetings from Samsung Customer Support!
Be assure below given steps will resolve the issue :-
1. Restart the device and check.
2. Remove memory card.
3. Check device in safe mode > Power off the device.>>Press and hold the Power key for one or two seconds to turn on
the device > When the Samsung logo appears, press and hold the Volume down key. Exit safe mode by restarting the device again .
4. Reset the device. (Kindly create data backup of your device via SMART switch mobile application or http://www.samsung.com/in/support/smartswitch pc suite).
After following the above steps, If issue still persist please do send the log file, so that we can provide you the better assistance.(Note:-You are requested to send it within 15 minutes of problem occur).
Thanks for writting Samsung.
Samsung Customer Support
And this is the problem with many s9 and note 9 users after recent updates
i think they are bugging our phones
Having the same issue and the "fixes" dont work. Of course the phone out of warranty. If they having issues why the he!! Didnt they stop rolling it out. Next phone gonna disable the auto updates.
Phone basically unusable unless at highest screen brightness