I can’t tell you the headache I have had following the instructions to flash the firmware. It has taken me days!
Nothing worked. I tried dozens of ways to flash this device. The camera just could not read the software until I tried the following. None of the online videos was any use and I did not get any help from either the email support or the facebook page. All I got were automated responses and links to the stuff I said did not work in the first place.
I downloaded the demo.bin file on a mac, double-clicked the file to make a cpgz file. I copied both onto the SD card.
I put the SD card into a Chromebook, alt and clicked to get a drop-down file, clicked zip file for both and ended up with a demo.zip file so now there were four files in total on the sd.
I placed that in the camera and it worked!