Error Message: Item was not valid after Installation
I have a Mazda NB1 and tried to update the SD card through the TomTom Home program. It seems that all the updates have been done except the map. I get the message " Item was not valid after installation: USA_Canada" when it gets to the Install To Card Reader part of the update. Now there's no working map at all. I just paid $84 for the 1 year map update service for USA & Canada map. Is this a problem with the update? If this can't be resolved, how can I get the old map back and a refund on this non-functioning update.