Headrush core unit with power. Turn on and works but can crash occasionally. Sometimes after a few mins other times it’s great. Updated to 5.0.1. To turn on you have to unplug the power then after the loading screen it says you turned it off wrong which I took a photo of. Then press no and it works. It just doesn’t like turning on normally. Bit of a weird one but seems quite common on Reddit after update 4.0.
eBay