I have a Nuvi 2689lmt that is hooked up through a Garmin FMI cable. It will usually stay in Express mode as if it connected to my computer but sometimes it will go into the normal mode but rarely for long. I've tried a different FMI cable as that was first suspicion but that didn't help. But when I connected a different 2689lmt that one had no problems so I deduced it was the actual Garmin unit that was the problem. When its not in express mode it will work fine except it won't allow communication through the FMI cable and will often say that the cord can't charge it. Has anyone seen this before and found a fix? I can't find much info as to how the Garmin determines its plugged into a computer for Express, the regular charger, or an FMI cable.
Thank you for any help
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