Macbook pro is not opening

Short version: I bought 16" macbook pro 2 days ago. Today it was shutting down. I called the costumer services and he said that update your macbook we published new update today.I tried it but my macbook kept shutting down when i was trying to open it after update.Then I received an email from apple. It was saying that try to reset nvram.So i did it.But when i pressed command option p r apple logo disappeared and my macbook did not open since then.I didn't release keys like 30-40 seconds, i waited for the logo but...

After that it started to keep shutting down and booting without any screen display with strange fan noise.Now it is not responding to anything.I've tried everything to make it respond but nothing happening what should i do?