Problems with Zumo 550
Tried this trick w/my 550. The info looked cool, but a couple of minutes later, my unit locked up. No buttons would work and screen had stopped loading a new map. Wasn't sure what happened. Tried to call Garmin and was told it would be a 30 minute wait. Went home and waited for battery to die. Plugged it back into the charger and all was OK.
Not thinking there was a connection, I told my wife of the discovery so we wouldn't have to buy voltmeters. While driving to a business conference, she tried it on her 550 and was excited about the functionality. She called back later and said that she had driven past her exit because her Zumo had not updated her location in a while and was locked up. No buttons worked. I told her of my similar experience and she let her unit's battery die. When plugged back in, it was working again.
Coincidence? I don't think so.