Yes there is no video out there but don't worry it is fairly easy to do, it's a little daunting but fairly easy.
First thing is remove the front cover, there are plenty of videos out there showing you how to do this, make sure you safely detach the two ribbon cables before totally removing the front cover.
Once the cover is removed the back part of the camera will detach, so other than the LCD screen on the back and the empty battery compartment there should be nothing else attached. Again see the other videos out there.
Once you have the back compartment with LCD do not remove any more bits or screws.
Before you do anything to the screen take note of where the YI logo on the LCD is positioned on the screen in relation to which side of the camera case, you will need to know this to make sure that you put the new one back in the same orientation.
Get a pencil with a rubber end, or anything plastic that isn't going to damage anything the gently push the inside of the broken LCD screen away from the camera body.
The LCD screen is only glued on to the case and is not fixed in any other way. I just pushed with a pencil at the edge of the LCD until it started to come away, once it started to come away I could the get my finger nail and peel the LCD screen off of the camera case.
Once you have removed the LCD, just make sure nothing has been left on the edge of the case, is use a screwdriver and ran it along the edges to just clear of any remaining stick debris.
Now get the new LCD screen and remove the clear plastic cover protecting the self adhesive edges, then place the LCD onto the camera case and apply pressure around the edge with your fingers. Do make sure the LCD is the right way up based on the position you noted earlier.
That's it, put it all back together and plug in the 2 ribbon cables and it should all work fine.
Good Luck