Can't flash new image to 920 uhd

  • Hi, i have a new 920uhd. I am trying to put a new image in the box, but it won't work. I am using my browser, and the box is in rescue mode so i can se the ip. When i type the ip in the browser and press enter all i get is this text " Content - type: text/html:charset=utf-8 " what do i do now