Original cost i think is very high since it's curve display. Consider it more than 15k. You can check original website https://www.samsung.com/in/support/spare-part-pricing-list-for-repair/?srsltid=AfmBOorcnOmmTLAM7J-VJgMaefmxhnPBF612mStvRw1BkcTBaA-N...
Change the wallpaper and lockscreen to different picture and then try to diasble. It will work. I had same issue in f70 pro .I used data switch tool from samsung to sync my old device data to new one.
My s23 plus formed white line on 30th dec 2025. Fortunately that was last day of the free screen replacement for s23 series. You can still visit service centre and inquire about the same. Not sure if they extended the same. You will require original ...