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

**aiexbadboy** · 5th December 2011, 07:09 AM

so far im loving this 34xx fw than 37xx, nice overall layouts and functions, best improvement imo is the calculating/recalculating speed, which is exactly what i need.

other improvements,

-map drawing speed on normal is much faster, car movement is also smoother.
-initial sattelite aquisition i feel its faster and stronger than 37xx and i think they use the same antenna.
-overall quickness of touchscreen transition time/responsiveness is much smoother.
-more street names appear under "more map detail" (i dont remember seeing that many street names on 3750 b4)
-able to change speed limit on simulator mode.

above r the noticeable improvements for me, other features such as advanced detour, trip planner etc i dont use them so i cant give out my opinion.
the rest r just eye candy, such as different poi icons, layouts etc.
1 thing i noticed abnormally, is while using simulation, car and the map "jumps" (dont know the correct term), but i believe its fixable through future fw update.

a quick question though, can a 3750 hardware support voice commands at all? because i cant get that to work on a 34xx fw..

lastly, im very happy and satisfied with this mod, i wont go back to 3750 anymore

voyager56 · 6th December 2011, 08:53 AM

Originally Posted by aiexbadboy

1 thing i noticed abnormally, is while using simulation, car and the map "jumps" (dont know the correct term), but i believe its fixable through future fw update.

Strange. I never had "jumps" nor when simulating nor when driving. But you are not the first one who mentioned about jumping.
I have 3790->34xx. Maybe it's because your unit is (was) 3750.

**fringe** · 5th December 2011, 10:44 AM

When converting guide says to "Rename Txt ,Voices and Keyboards folders in your Nuvi to another name eg Petx Poices etc."
Is it necessary also to delete any other folders/contents or are the 37xx folders overwritten by new software? Eg Tutorials currently for 37xx will be 34xx after or still 37xx.

**catymag** · 5th December 2011, 11:15 AM

Originally Posted by aiexbadboy

a quick question though, can a 3750 hardware support voice commands at all? because i cant get that to work on a 34xx fw..

34xx needs different ASR files than 37xx, I redownloaded CNE and now voice command works perfectly
And yes 3750 doesnt have the microphone, you should add it

Originally Posted by fringe

When converting guide says to "Rename Txt ,Voices and Keyboards folders in your Nuvi to another name eg Petx Poices etc."
Is it necessary also to delete any other folders/contents or are the 37xx folders overwritten by new software? Eg Tutorials currently for 37xx will be 34xx after or still 37xx.

I just renamed those folders, I havent deleted any other folder-
After conversion run Webupdater to download needed files, as said.
In About and at start , converting the sw just flashing 34xx sw original as written in post n1, nuvi will show 3790/60 etc, but will act as a 34xx

**fringe** · 5th December 2011, 10:53 AM

@aiexbadboy
Yes voice feature can be activated in 3750 (see turboccc thread on enable extra features in 3750,60,70). Hardware wise you do need to solder in a small microphone as 3750 has spot on board but no mic. Again turboccc has had success doing this (refer post).

**fringe** · 5th December 2011, 12:12 PM

Have completed initial steps and a little unsure how to proceed. Cleared non vol. renamed folders.
After dragging 34xx360.rgn onto updater and entering loader mode the device was identified as "Nuvi Blade Series " and software updated successfully to "Nuvi Blade Series Software Version 4.7"
Now I restart the device and logo still comes up and device looks unchanged from 37xx mode. In settings SW version 4.7 GPS ver 2.6
If I still get logo without updating the 34xx logo does this mean software is still 3790?

EDIT - Fixed
Need to add a reminder in instructions to remove any GCDUPDATE from system folder.!!!!

**catymag** · 5th December 2011, 02:09 PM

Originally Posted by fringe

Have completed initial steps and a little unsure how to proceed. Cleared non vol. renamed folders.
After dragging 34xx360.rgn
Need to add a reminder in instructions to remove any GCDUPDATE from system folder.!!!!

This is flashing ABC ,lol, anyway I'll add

**leonkoum** · 5th December 2011, 03:15 PM

"Need to add a reminder in instructions to remove any GCDUPDATE from system folder.!!!!"
yes i agree.
It was the olny problem that i have
Great job!
If i want yo go back is it possible?