When you say the unit never comes up, we’re just looking for a watchdog LED at this point. Do you get that? I’m also concerned which jumper you’re moving for loading software. The only time you are going to move a jumper on the CPUA is to run a recover file in the recover folder to repair a corrupted CPUA. And what files do you have in the update folder when loading? Should be a generic and a job file with the job number. Remember the job file will go away when loaded so always copy and paste from backup to update.