I've edited cmdline.txt on my Raspberry 3b + model to not show the logo during the start up. I've added logo.nologo at the end of a line.
After that, I restarted the device, but I was still seeing the splash screen logo. I figured out I might've done something wrong while editing the cmdline.txt so I opened it again but it was empty.
Raspbian boots up correctly, even though cmdline.txt appears to be empty. Any clue why is this happening?