As per your query, we request you kindly visit the service center for a physical inspection of your device. So that they can check the exact issue with the device and fix it at the earliest. You can locate your nearest service center with this given link: https://www.samsung.com/in/support/service-center/
It is very strange to get this kind of reply from customer support. I am able to fix it now by changing the keyboard setting to English (UK) . You should know it and share correct answer rather than generic answer
