Can you please share the screen with vertical lines by taking Screenshot of it or capturing screen photo by using other phone. 🙂 if ,its after any update than it may due to glitches, if its suddenly happened without doing any update than you might be require to change display.
We acknowledge your query and apologize for the same. We request that you kindly visit the service center for a physical inspection of your device. You can locate your nearest service center with this given link: https://www.samsung.com/in/support/service-center/
