Just need a basic answer about 3.4.22251

So I was able to get it cleaned and install the usb stick with the update on it and was about 20 mins into it. I went to check on it and the screen was just black. I waited for a couple minutes to see if anything would happen. The blue ford logo came up like when you start it up and then black screen again. Waited another 5-7 and did it again. Unpluged the usb and cycled the truck and no its just black still. I can here the radio and adjust the volume but thats it.