Did anyone have any idea how long does it takes Asus to send a new one or repair it? And did anybody who returned it to RMA had to pay for shipping it back(No return label). I bought the nexus player from Walmart from the $25 sale like 2 hours ago and was in the process of updating it to Marshmallow from 5.1 via Ota and it restarted randomly and wouldn't boot at all. I'm assuming that it's hard bricked because I can't even boot it into the bootloader by pressing the button.
I'd download wugfresh's nexus root toolkit and try flashing to stock.
This will tell you how to get in bootloader mode http://cord-cutters.wonderhowto.com/how-to/root-nexus-player-0160218/
You can probably flash the factory image yourself, if you're comfortable with doing that.
i RMA'd my Android TV and they express shipped my replacement to me. I think it took no more than 3 days total. And on top of that it came in a new retail box with another controller and all the cables. And they never asked me to ship back the original unit.
Seems like returning it to Walmart might be the better and quicker option.