I got Nuvi 255w recently. And I updated the map via myGarmin website.
So, the version of the map is CN North America NT 2011.20.
But It's very boring, I found I could not locate some destinations by spelling postal codes, such as K0J2C0 and K0J2M0 in Ontario Canada.
I tried some displayed in the stores, which pre-loaded CN North Amercia NT 2009,
and located the K0J2C0.
Thus, I thought something might be wrong with the updated map in my unit.
Could someone tell me how I can rollback the map?
Thanks.
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