I'll have to look that up. Did anyone from Garmin give you a phone number to call them directly? You found a rep in Vienna, and I would suspect they would connect you to the nearest rep in your present area.
I honestly don't think that connecting to Garmin's Warranty replacement centre is the best way to get an exchange. Garmin is interested in "looking Good" by sponsoring your club, and they should have provided you with a contact person throughout your tour.
I would want that person available to me.
Now, I was making notes to you earlier about how to know if the Zumos need replaced or not.
I have important information here, but it's MORE for me, than for you. Essentially it's just info on how I would protect the Zumos from getting hurt again.
You may want to look over the radio part and the magneto part. I think they used coils and distributors back in 1914 but the techonology was only 20 years old at the time.
Ok, the final answer will be in how your GPS and computer responded to each other when the USB cable was connected to the GPS.
Did the computer recognize that it had connected to the GPS via the USB connection?
And when the GPS was turned on, did Garmin connect respond at all to it?
If we got no response, then the GPS hardware is damaged, we need new Garmins.
If the GPS did connect, we need new software re-written to the GPS.
Note this url --
And note the model number is XXXXX I doubt you have a 200, but model numbers are specific to firmware and vice versa. It's like installing a Cadillac engine into your Rolls..you would never do it, and anyone that does would not be in your club.
Plus it won't fit properly, and all sorts of bad stuff would occur. But I need that as my reference point.
Right now I am honestly thinking the Zumos are hardware damaged and unlikely to be repairable.
Plus I really think the next Zumos need to be connected to Garmin's site, new accounts need to be setup first and foremost, I would hope that Garmin's web updater would transfer your firmware to your account (not just store it on the computer you're connected to) and let you download updates.
THEN...before you even connect your Zumo to your Rolls...
1] Does your Zumo come with an AC charger? You need it...you want it, and you want a DC to AC Converter to protect the Zumo.
I don't know if any of your Rolls Royce have radios...I don't even know if they work if they are available. But I do know that old radios can generate massive spikes with their reed based multivibrators, the magneto is another source of possible destruction, the dynamo is another...and the only real way I believe these units can be protected is using a DC to AC converter and your AC charger.
Other than that maybe a solar powered charger, but where would you find those in a village?