To start the system enough to download, unzip, burn the image to the SD card. Connect the SD card to the EDGE and turn the power on.
The system starts automatically. Details on the initial setup of the running system can be found in these topics.
https://yadi.sk/d/ie_dx5x_w2xUIQ
https://mega.nz/#F!n1hihSKT!8kYublAPG4RtwSIBihOkVg