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

Originally Posted by giuseppe66

i've always, on display>map, on top left, the square symbol of mobil velox. when i touch explain that there is a velox at xx meters, also some Km. when i arrive to a destination there is also parking symbol. is possible don't see any symbol?

I think that you have a GPI file in your Nuvi that Has a speedcam POI that is set to a radius of some KM instead of say 400 meters.
First step is to delete all your speedcam .GPI Files (backup first) to see if the problem goes away.

Originally Posted by alkindus

i followed the instructions step by step and get my 3760t converted to 3490 the problem is ,when starting it displays the model number trunkated, just the two first numbers 34xx even if i revert to original version it displays the same 37xx in webupdater it shows the same 34xx not 3490 or 37xx not 3760 the last ones replaced by "xx"and when loading maps it shows just a tiny c not the whole text of copyrights after the warning's it shows the message "cannot unlock maps" when i browse the map's folder, there nothing in it

You made something wrong and probably you lost model number, I hope you havent lost ID too. What do you have in Info/About? Have you done NV backup as written in post n1 ?

Originally Posted by alkindus

i have done nv backup before

good ,as voyager56 wrote ,flash it back via sd as written here
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dear all,
this is my first post.
great jobs, not only this thread.

I followed all the steps, new method, and i was able to convert a 3760t into 3490. It worked fine for a week, and after that started a strange behavior: it starts up and instead of showing the map show only a gray screen. just instead of maps. I see all the other icons etc. It even works correctly, telling me where to go (upper of the screen and voice navigation).

my current setup is: all the EU 2013.30 maps on a 8gb microsd, as well as 3d trafic and buildings and all the other big files.

sometimes, removing and re-inserting the sd card it start working, other no.

can anyone help me? is this a matter of the sd itself? but why the navigation works fine, even if not showing it on the screen? is there any logfile i can look at to see for the problem?
thank you