Thank you for being with Samsung and sharing your concern. We would like to inform you that kindly follow the steps below to resolve the issue:-
1 Adjust the brightness of the device then check (Setting-->Display-->Brightness)
2 ""Disable the “Show Screen Updates"" option in developer options or completely disable the Developer options.""{(Setting-->Developer options (If its available & highlighted)-->Show Screen Updates)}
3 Check third party applications if downloaded recently. Post which check in Safe Mode, if the issue still persists.
4 If the device is in Safe mode and the problem still exists, we would advise you to create the Data backup & Factory Reset the device.
5 Periodic Software Update through FOTA, SMART SWITCH or Smart Tool is intended to resolve the issue as well.
If issue still persists, KIndly provide logs/video within 15 minutes of issue occurrence by registering this feedback via Samsung member application i.e. Samsung member BETA app> BETA feedback>Sendfeedback>Error report>Collect log files>attach.
Be sure to hit ? when you find an answer that works for you. For Further assistance, you can also connect us via Samsung Members web community by following mentioned url https://community.samsungmembers.com/en_IN#/
