My Nuvi 500 bit the big one on the way back Star in Arkansas, so I tossed it in the corner, and forgot about it for a while. I called Garmin Tech Support, and they say they don't work on that unit any more. I hated to give it up, as it is waterproof, loads custom routes, and it works well for the bike that I keep at our "Riva" cottage. Not only that, it can still sub for my 660 if need be. I did some Google work, and came up with Sat Nava repairs
http://satnavrepairservice.com/repair-satnav/garmin-repair/13.htmlThis is one cool group! They are all over the world, and they have a repair center in the US. The list of GPS and other electronic devices they repair is endless, but they do give you an online list to choose from. My 500 is on their list, so I followed their instructions, and gave them a detailed description of the problems:
When turned on, the unit would show the" maps out of date screen", this screen would not change no matter where you touched the screen. I updated the software in the unit, and attempted to re calibrate the touch screen to no avail. I described these problems, and they instantly replied with a quote of $49.95+$6.00 shipping fee to repair it. It's certainly worth that to me, so I took a chance, and shipped it to them, at a cost of a little over $6. It took 1week from shipping until my repaired unit came home to daddy. I took it out today, and it performed just like a brand new one!!. Of course, time will tell how well it will hold up, but I'm very impressed so far! I've read a fair number of posts about units that people love, but have to give up on. This seems to be helpful in curing your problems. New motorcycle gps units run $325 to $800, so rehabbing an old friend with lifetime maps for $62 fits my budget just fine. Do what I did, and check out the reviews. I think you'll be impressed. Syd😁