Take a peek in the Vix Support by clicking at the top of the page , guides are to be found there . in brief you will need a USB flash drive , download a relevant Image , expand the downloaded image and copy the file to the flash drive, with the STP switched off, insert the loaded flash drive into a USB slot on the STB , switch the STB on , you may or may not need to press the volume up button on the STB as you switch on the STB , please check the guide for your particular STB.