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

For mature what do you mean, faster, more precise or what? Would you recommend this conversion yes or no? Converting the 37x0 to 34x0 should I then use NT or NTU maps?

Yes to that and the fact that 37x0 firmware was not as well-developed and basically stalled when Garmin brought out the 34x0 series. They are the same hardware, Garmin dropped 37x0 development when they moved to the 34x0 firmware which is more sophisticated and stable.

34x0 use NTU EU exclusively, there aren't complete ancillary files for that series to go with NT mapping for Europe. Maybe just convert it and see what you think. My first 3790 was converted to 3490 and back many times without problems.

Thanks a lot! Do you recommend convert 3790 to 34X0? It is so better? It is so easy update in future the nav because files are more present in the web?

For most users either 37x0 or 34x0 will suit everyday needs. Maybe just try the conversion and see how you like it as 3490, if you don't like it then convert back as it's pretty foolproof but keep in mind there's always a risk when you cross-flash firmware. Some 37x0's had different GPS chip to other 37x0 and 34x0 so they can suffer inaccuracy due to not having complete compatibility with 34x0 firmware, so you should read this too: [Only registered and activated users can see links. ].

here is a anonymized content of the folder .\System from Nuvi 3790
[Only registered and activated users can see links. ]
I hope this helps

here is the anonymized contents of the folder. \ System from Nuvi 3790
[Only registered and activated users can see links. ]
I hope this helps

@moi123456
Rather than clutter that's a timely reminder to always hard-reset (or better still, clear nonvol) before and after fw conversions. It's also best-practice to backup the nonvol region before and after conversion. Restoring nonvol after re-converting can save nasty problems later.

You can find the logo files here: [Only registered and activated users can see links. ]

Some keyboard links are dead in initial post however the official Garmin links behind the spoilers are still live. You can load the RGN for 37xx file into WebUpdater with device connected (or use RGN_Tool and save the pk_text.zip which in turn contains the complete keyboard folder for 37xx). The EXE file for 34xx keyboards may be extracted using WinRAR or similar program to find the keyboards folder.

Attached below is the 34xx Text folder in a ZIP file. Extract it and then after loading into the device connect to GarminExpress to update if needed.