I am having similar issues. I used the above video for reference. The installation gets to 99% before the error code pops up.  
	 
 
	-the usb cable is not connected
 
	- the wi-fi Ethernet connection to your printer was lost.
 
	the printer is powered off.
 
	i am using a usb cable. I do not have the printer(espon xp15000) connected to the wifi.
 
	the print is on. But was idle so the screen did power down.
 
	thank you in advance for any recommendations.