Default Help! How to update rk3188 android tv stick

I cant seem to figure out how to update the RK3188 android tv stick. Please help!! Ive tried to look on their website trimington powers. Its so vague on how to do it. Step one I cant seem to figure out even which connector to use.....Usb to Usb? or Micorusb to usb which just powers it? Im extremely confused and the firmware thats on it now isn't as good as it should be and I'm very unhappy so far. Any help would be greatly appreciated.