Thread: Transform a Nuvi 37xx in a Nuvi 34xx for dummies

Originally Posted by fringe

Gradually getting there. Voice Command working now (though several menu options are listed but not available with my language files limiting usefulness).
After conversion 3790 to 3490 should there be a \SID folder in .system?
My G2S (Traffic Trends) folder is now empty and I have no SID folder.
MyGarmin tells me a software update is available but as my registration details refer to 3790 model. I'm not sure whether it is offering updates for the 37xx or for the 34xx. Can anyone clarify.
Webupdater shows some 34xx updates but only language files (that I don't need).

You must create SID folder in .System and put there *.sid files.
My Garmin doesn't know that you updated to 34xx. Mygarmin dashboard identifying your device by UnitID. Because UnitID is the same it identifies device as 3790.
Webupdater reads GarminDevice.xml and here info is changed. Know Webupdater identifies it as 3490.

P.S. If you have LMT for your 3790 you will get updates for "new" 3490. These updates will be as for 3490, not 3790. You'll get sid,asr and other files required for 3490.