Kindly complaint to Samsung customer support through Samsung Members App as error report also send log files Along with this error report for this issue. Then go to service center for replace/repair it's. If you like please accept as a solution, it's help to others users also,click on 3dots in my reply section and click on accept solution . Thanks.
My samsung phone S21 FE 5G white line appear on display today just 2 hours back. Is this software issue? Recently I have updated my phone with latest software update.
