I've got a Zumo 550 running version 4.70 of the software. Upgraded just before going on my last trip.
Zumo now routes crazily, when using 'shortest distance' will plot hundreds of miles out of the way!!!????
Before I check for upgrades, wondering if anyone else has encountered this. For instance, from around Cairo, IL, will plot a route to Superior, WI that goes FAR west in Iowa, north, than returns far east... about 250+ miles out of the way..
Plotting a similar route, with a waypoint to Madison WI, will plot straight north, then straight east to Madison, straight west back along the same route, and then north again.
example image shows a plot with a very obvious crazy jog in it...
It did not exhibit this ridiculousness previously, and I've not changed any settings, avoidances, etc.
Oh, and it randomly shuts off occasionally... No power warnings, just goes instantly black...
Anyone else seen this... Have a fix.... Haven't check for latest upgrade yet, wanted to check this forum..