Thread: Using TMC in Garmin nuvi for free

Looks like u used the wrong code, cause when u have the GTM-21 with the latest firmware it should show the name of the traffic provider in the Netherlands. Please note, u need the UnitID of your TMC receiver, not from the 765
Removing the other code is described here in this thread, basically generate a code with VenID 0 and not 1

Originally Posted by tom1807

Looks like u used the wrong code, cause when u have the GTM-21 with the latest firmware it should show the name of the traffic provider in the Netherlands. Please note, u need the UnitID of your TMC receiver, not from the 765

That's exactly what I did. In the mean time I have acquired a nüvi 775T as well, which behaves in just the same way. I must add that I have not used the nüvi in the car yet, just placed it behind the window at home for satellite reception while connected to the GTM21.

Originally Posted by tom1807

Removing the other code is described here in this thread, basically generate a code with VenID 0 and not 1

Thanks, will try this. Do I have to do this with each one of the 3 codes you mentioned in post #115?