Trouble with Firmware builder

I have been trying the firmware builder, it compiles and all that, but won’t run on my machine. I download and copy to sd, put in the board, and nothing. What could I be doing wrong?

On my Ender 5, I rename the firmware with the name and date like firmware10242022. The firmware has to have a different name each time or it does not work. Also no other things on the SD card. I use a 8GB card.