My Lumia 650 screen is intact, but the liquid crystal display has stopped working, so the phone is useless. I bought it in the UK around 6 months ago, so it is still under warranty. Will Microsoft repair it under warranty, and if so, where do I send it?
You have 1 year of warranty starting the day you bought the phone, so yes you still have warranty. It is best to contact the store where you bought it to know how to properly claim warranty service.