Because it has been flickering with different colors. Don't know, been doing that since I tried to install the arm11.bin thingy via the URL the YTer mentioned.
Gives me this screen after 20 minutes under the arm11.bin link as mentioned in this tutorial (When I could have just replaced it like a dumb). Froze, then when I try to turn it on, the error message as stated in the top video is a nightmare to look at as it is the only thing I see.
Tried to do...
I took a look at the rail and noticed that the two last pins were soldered for some reason, luckly I still had the rail of my broken joycon so after I swapped them I was able to use it attached to the console