cvega48 started following Dell 5400: stuck booting the Catalina USB installer
I have a 5400, but i am not able to get the touchpad to work. I have audio, Network, UHD620 working on 10.15.4. Another thing is that when I upgrade to 10.15.5, I loose graphics. What are you currently running on your Latitude 5400? Can you share current configuration?