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| Posted by Markgoddard Garmin 51lmt no sound and laggy mapping I bought a new Garmin 51 LMT yesterday, updated the software etc before using it, tried it this morning and it was ok, got back into the car and there was no sound, and then the map started to get laggy, the speed was showing ok as was the collision alert. Is there a simple fix or is the unit faulty? |