Thread: Using TMC in Garmin nuvi for free

Loly, my GTM25 crashed shortly after update with the last firmware 3.10 and installation of new signature, but I can not say whether it was coincidence or consequence. After this, the option no longer appears on the GPS to install or delete subscriptions. I'm trying unsuccessfully to reinstall the previous firmware (2.90). If you have any idea about it, is welcome.

Today I have only a GTM26 on hand. The combinations that you suggest I've done for a long time, but always in Nuvis 4 digit (13xx and higher). With FID 2823 enables Traffic but erratically, tunes flow of traffic from distant cities, something strange, that is, useless! The other codes I've tried it and also various other combinations of FID, PID and RGN. Work, but with more satisfactory results seems even 31495, 14,14,1 and 15,15,1. The tunning always occurs with PID 14. There are two official signatures: one with pid 14 and other with 15.

The GTM 25 and 35 accept the signature Jetmouse perfectly, but the firmware of 255 (and all xxx) not configure the receiver to tune and show some abnormality in the presentation of the signature. From what I remember these models do not have trafficprovider.xml in memory disk of gps, so the tuning parameters should be embedded in the firmware. Knowing how to enter the correct parameters of the country, perhaps the tuning will be possible. Who has one 255 and GTM25 is Acleite. He and numerous users have tried and no one has succeeded to enable traffic in these models. If you want to search about, surely many people will be grateful ..