I received my Yarbo today. I was able to put the core into operation and installed the Datacenter. After a firmware update of the Datacenter, this began to flashing red (It was green before the Update, no changes with the Cables). The core showed that a wheel would grind on the right. I relaxed and checked the link band by instruction. After that, the core can no longer be activated with the start button. He only reacts when I hold the start button. Then he seems to start but as soon as I let go of the button it is off again 
Not the best start with our Relation. I give up for today. How to reset the Core?
Mine was bricked this way out the box too. You are going to need a support ticket to advance to developer in China who will fix it if it still connected to your internet. However mine just bricked last night again mid mow (happened a couple weeks ago proximate to firmware updates like the ones that rolled last night. Don’t hold your breath but get tickets or calls going ASAP.
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