Thread: The product key is not valid for this map update

Originally Posted by tp2168

- When trying to update map on nuvi 255W with lifetime maps, using
Garmin MapUpdater v3.3.3, I received the error message.
"THE PRODUCT KEY IS NOT VALID FOR THIS MAP UPDATE"

- No problems updating maps when using Garmin Express v3.2.4

- When using MapUpdater again, after updating maps, I received the
same error message.

I have the same problem too. But when I launch Garmin Express and this program have only detected device there is no problem with MapUpdater. Try this way, please, and report...