Ive looked at the thread on running progs from sd card several times and think I understand some of it, and have tried to download everything from the nuvi onto an sd card using Butters instructions. It didnt work, have I missed something out. My plan was to download everthing from the nuvi to find out the device xml file. Here is the way Ive set up the sd card.
Garmin folder, then inside it updater folder, then inside that 1350 folder, and inside that the text command (as below)
copydir,0:/,1:/BackUp/
reboot
Nothing happened. Can you advise again please.