I have just received my Dragonboard 410c. When I connect keyboard and mouse to the board there is no response on mouse actions. The keyboard works just fine on both USB ports. I also tried a wireless mouse, it did not work. My wired Dell mouse is quite old, about 8 years but it works perfect with all my computers.
I really need help with this, the device is far too expensive to be thrown in the garbage bin. Since I live outside US I had to pay freight, custom fee and tax on top of the original price; in total $165!