How to load firmware?

Question 1 : How to load firmware into metawear board?, initially firmware was already installed in that board or we need to load?
Question 2 : how to identify my own brand hardware. (ex: i am going to launch my own brand name top of metawear hardware) my mobile application should be support only metawear hardware come from my brand. so how mobile app identify that brand? (like fitbit application will work only with fitbit hardware)
Shall i add any serial key in firmware itself?


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