Sony India — screen mirror is not working

Address:

L. B. 31 Chitrakut Nagar, Bhuwana, Udaipur, Udaipur, Rajasthan, 313001

I have an sony led 7002f with screen mirroring feature but it not working with my oneplus 6t mobile phone and it has problem too with laptop connectivity. I have complained several times to the dealer and costumer care too but there are no action is be taken by them. Its a last warning by me otherwise i will gonna file a case to the consumer court.